Ten Years After Brexit: Keir Starmer's Resignation or the Exhaustion of the British Model?

The political calendar sometimes brings striking symbols. The resignation of Keir Starmer, announced on the eve of the tenth anniversary of the Brexit referendum, belongs to that category of events that go far beyond the personal trajectory of a leader. It is more than a government crisis or a simple parliamentary incident. It emerges as the culmination of a turbulent decade that has profoundly transformed the United Kingdom, its economy, its political system, its social cohesion, and even its place in the world.

When the British voted on June 23, 2016, to leave the European Union, they made a decision whose historical magnitude few assessed at the time. Since the end of the Second World War, no Western country had voluntarily chosen to withdraw from such an integrated economic and political bloc. Behind the slogan “Take Back Control,” the promise of a national rebirth began to take shape. The United Kingdom was meant to regain its full sovereignty, resume its global vocation, and free itself from the constraints imposed by Brussels.

Ten years later, the balance sheet is more ambiguous. It is true that the United Kingdom left European institutions and regained total legal and regulatory autonomy. But this political victory was accompanied by a series of economic, social, and geopolitical consequences that continue, to this day, to shape the national debate. Moreover, Brexit seems to have revealed deep-seated vulnerabilities that already existed within British society and which it helped to amplify.

Starmer’s downfall is therefore not just that of a prime minister. It constitutes the latest episode of a broader crisis: that of a country still struggling to define its strategic identity in the post-Brexit world.

A) An Economy That Never Regained Its Momentum

To understand the current situation, one must return to one of the fundamental promises made by Brexit proponents: that of restored prosperity. The economic argument was at the heart of the "Leave" campaign. Once free from European regulations, the United Kingdom was supposed to become a more agile, more competitive economy, and more focused on global markets.

However, the figures observed over the past decade tell a different story.

Even before Brexit, the British economy suffered from a chronic productivity problem. Since the 2018 financial crisis, productivity growth had become one of the lowest in the developed world. The 2016 referendum did not create this weakness, but it introduced a new source of uncertainty that weighed lastingly on investments.

According to estimates from the Office for Budget Responsibility, Brexit is expected to reduce the long-term volume of British trade by about 15% compared to a scenario of remaining in the European Union. This contraction does not result from an abrupt disruption, but from the accumulation of multiple administrative, customs, and regulatory costs that now complicate trade exchanges with the country's primary trading partner.

The paradox is even more striking because the European Union remains, to this day, the main destination for British exports. Despite the declared ambitions of a “Global Britain,” the trade deals signed with Australia, New Zealand, or various Asian partners have never compensated for the importance of the European market.

This reality is clear from the economic results observed over the last ten years. Between 2016 and 2026, British growth remained consistently lower than that of the United States and often comparable to that of Western Europe’s weakest economies. OECD projections for 2026 point to growth below 1%, while inflation stays above the Bank of England's targets.

Even more concerning is the progressive decline in the standard of living. According to several academic studies, the British GDP is currently several percentage points below what it would have been in a counterfactual scenario of remaining in the European Union. Although estimates vary according to the methodologies used, most converge on the idea of a substantial economic cost.

This stagnation has become particularly visible in the regions that had heavily supported Brexit. The old industrial areas of northern England, the Midlands, or Wales continue to show worrying socioeconomic indicators. The territorial disparities that have characterized the British economy since the Thatcher era have not disappeared; in some cases, they have even intensified.

B) The Return of the Social Question

One of the major analytical errors made after the 2016 referendum was viewing Brexit as a simple vote on Europe. In reality, it was also an immense cry of social protest.

In many industrial towns hit by deindustrialization, the referendum became the vehicle for anger accumulated over several decades. Voters were expressing less of a rejection of Brussels and more of a rejection of an economic model perceived as unable to meet their expectations.

This divide continues to run through British society today.

The difficulties of the National Health Service (NHS) probably constitute the most emblematic example of this crisis. Long considered one of the country's most respected institutions, the British health system faces growing pressure related to demographic aging, staff shortages, and chronic underinvestment. Waiting lists are hitting historically high levels, while budgetary constraints limit the capacity for reform.

In parallel, the housing crisis has worsened. In many regions, particularly in the south of England, homeownership has become inaccessible for a significant portion of younger generations. This evolution feeds a sense of social decline that now affects even the middle class itself.

The rising cost of living observed after the pandemic, and subsequently after the energy crisis related to the war in Ukraine, accentuated this dynamic. Although the United Kingdom was long presented as one of the most dynamic economies in the Western world, a growing share of the population feels that economic progress no longer benefits the majority.

C) The Fragmentation of the British Political System: The End of the Westminster Model?

One of the most profound consequences of Brexit is undoubtedly the transformation of the British political system itself. For nearly a century, the United Kingdom was presented as the personification of parliamentary stability. The Westminster model relied on a relatively predictable alternation between Conservatives and Labour, facilitated by a first-past-the-post majoritarian electoral system that marginalized intermediary parties and favored the formation of solid majorities.

The 2016 referendum profoundly shook this balance. In fact, Brexit served to expose cracks that already existed within British society but had until then remained contained within the major parties. The divide between supporters and opponents of the European Union gradually replaced the traditional opposition between left and right. From then on, both the Conservatives and Labour found themselves fractured by internal divisions that made governance increasingly difficult.

The succession of six prime ministers between 2016 and 2026 is a particularly revealing symptom in this regard. Since World War II, the United Kingdom had rarely experienced such instability at the head of state. The consecutive departures of David Cameron, Theresa May, Boris Johnson, Liz Truss, Rishi Sunak, and finally Keir Starmer reveal less the individual weaknesses of these leaders than the inability of the political system to produce a lasting consensus on the country's direction.

Even more profoundly, Brexit contributed to the emergence of a new electoral geography. Large globalized metropolises, with London at the forefront, continued to vote overwhelmingly for parties favoring close cooperation with Europe. On the other hand, territories affected by deindustrialization and demographic decline broadly supported sovereignist forces. This territorial opposition now resembles the divides observed in the United States between the coasts and the interior rather than the traditional cleivages of European politics.

The rise of Reform UK, driven by Nigel Farage, is the most visible expression of this realignment. In many respects, Farage became the political beneficiary of a paradoxical phenomenon: growing dissatisfaction with the consequences of Brexit feeds not a return to Europeanism, but a growing demand for sovereignist radicalism. As with many contemporary populist movements, the difficulties encountered are interpreted not as proof of the initial project's failure, but as a consequence of its incomplete application.

This dynamic places traditional parties in a delicate position. The Conservatives are struggling to rebuild themselves after championing Brexit and subsequently failing to meet the expectations it had raised. Labour, for its part, finds itself trapped in a permanent contradiction: a portion of its electorate remains in favor of a closer alignment with the European Union, while another still considers Brexit an untouchable democratic achievement.

Ten years after the referendum, the real question is no longer whether the United Kingdom will one day return to the European Union. It is about determining whether the British political system is still capable of producing majorities cohesive enough to govern a country marked by increasingly deep territorial, social, and identity divides.

D) Brexit as a Factor in London’s Geopolitical Weakening

The promise of a “Global Britain” was one of the intellectual pillars of Brexit. According to its defenders, the United Kingdom was to regain the necessary freedom to become an autonomous global actor once again, capable of resuming its historical vocation as a maritime and commercial power.

Ten years later, this ambition appears largely unfulfilled.

The United Kingdom unquestionably remains a major power. It retains a permanent seat on the United Nations Security Council, possesses nuclear weapons, remains one of NATO's leading contributors, and maintains one of the world's most influential financial centers thanks to the City of London. However, the fundamental geopolitical question is not about its intrinsic capabilities, but its relative influence.

And it is precisely in this field that the consequences of Brexit are most visible.

For nearly half a century, London enjoyed an exceptional position. The country served simultaneously as a link between Washington and Brussels, an intermediary between continental economies and global markets, and a reference military power in Western Europe. This hybrid position allowed it to exert an influence far superior to its demographic weight.

The exit from the European Union profoundly altered this situation. By leaving community institutions, London relinquished its ability to directly influence European norms, regulations, and policies that, nevertheless, continue to affect its economy. British leaders regained their decision-making sovereignty but lost their co-decision capacity.

The conflict in Ukraine perfectly illustrates this contradiction. Since 2022, the United Kingdom has played a central role in military support for Kyiv. However, the main economic, energy, and regulatory decisions affecting the European continent continue to be made in Brussels, Berlin, and Paris. London remains an essential actor but no longer participates in shaping the institutional framework that structures the European response.

This evolution is particularly visible in the commercial arena. While the United States and China engage in increasingly intense technological competition, the European Union attempts to build its own strategic autonomy through ambitious industrial policies. The United Kingdom, now outside this bloc, must constantly negotiate its access to a market that still represents nearly half of its trade.

Added to this difficulty is a growing budgetary constraint. Like most Western powers, the United Kingdom must simultaneously finance its energy transition, modernize its infrastructure, sustain its healthcare system, increase its military spending, and reduce its public debt. This accumulation of priorities automatically reduces the resources available to maintain its international standing.

Brexit, therefore, did not cause a collapse of British power. Instead, it accelerated an older trend: the gradual transition from a first-rate global power to a high-tier middle power, forced to select its strategic priorities more carefully.

E) What Are the Scenarios for the United Kingdom up to 2035?

As the country enters the second decade of the post-Brexit era, several trajectories seem possible.

1. Pragmatic Normalization: The first scenario is a pragmatic normalization of relations with the European Union. This is the most likely. In this hypothesis, London would continue to reject any prospect of reintegration but would multiply sector-specific agreements in areas such as defense, research, energy, or trade. Such an evolution would allow for a progressive reduction of the economic costs of Brexit without questioning its political principle.

2. Reinforced Sovereignist Impulse: The second scenario would be a reinforced sovereignist impulse centered around Reform UK or a more radical realignment of the British right. In this case, tensions with Brussels could reignite, while priority would be given to a more restrictive migration policy and a stronger assertion of national sovereignty. However, this scenario would quickly run into the economic realities of a country whose prosperity remains intimately linked to international trade.

3. Territorial Fragmentation: A third, more concerning scenario involves the territorial integrity of the United Kingdom itself. Since 2016, Scotland has seen the arguments of independence advocates grow stronger. As the majority of Scots voted against Brexit, leaving the European Union reignited the debate over the future of the political union created in 1707. Even if Scottish independence remains unlikely in the short term, the issue could become central once again over the next decade.

4. Reinvention of the Economic Model: Finally, a fourth scenario is based on a true reinvention of the British economic model. This would imply a massive investment effort in infrastructure, research, new technologies, and training. In this perspective, Brexit would progressively become a secondary element of a broader national project aimed at restoring the country's competitiveness within the context of the technological rivalry between China and the United States.

At its core, the central question may no longer be about Brexit itself. Ten years after the referendum, the debate over the European Union tends to progressively give way to a more fundamental inquiry: what role does the United Kingdom wish to play in the 21st-century world?

Keir Starmer’s resignation occurs precisely at this decisive moment. It likely closes the first political cycle of Brexit—that of promises, ruptures, and adjustments. The challenge of the decade now beginning will be different. It will no longer be about leaving Europe, but about defining what it means to be British in a world where power is measured less by legal sovereignty than by the ability to influence the planet's major economic, technological, and geopolitical balances.

Conclusion: Brexit, or the Difficult Quest for Sovereignty in an Interdependent World

Ten years after the 2016 referendum, the United Kingdom finds itself at a historical moment of truth. Keir Starmer’s resignation does not merely represent the failure of a government or a parliamentary majority. It emerges as the symbol of a decade during which the country sought to redefine its place in the world without ever managing to resolve the contradictions revealed by Brexit.

For the true lesson of these ten years goes far beyond the British case. Brexit was, first and foremost, a political response to the economic, social, and identity anxieties accumulated over several decades. It was the expression of a profound malaise in the face of globalization, deindustrialization, territorial inequalities, and the perception of a growing detachment between elites and citizens. In this sense, the vote on June 23, 2016, already foreshadowed the turmoil that would hit most Western democracies in the following years.

However, a decade later, the United Kingdom is faced with a reality that many states confront today: in a deeply interdependent world, regained sovereignty guarantees neither prosperity, stability, nor influence. The British took back control of their institutions, but they did not, by extension, regain mastery over the economic, technological, and geopolitical forces that shape the 21st century. Financial markets, global value chains, migratory flows, energy crises, or rivalries between major powers continue to impose their constraints on London, just as they do on all other capitals.

Therein lies the full ambiguity of Brexit. From a legal and political standpoint, it constitutes an incontestable victory for national sovereignty. From a strategic standpoint, it simultaneously reduced the United Kingdom's capacity to influence its immediate regional environment. By leaving the European Union, London gained decision-making autonomy but lost part of its co-decision power over continental affairs. The United Kingdom is freer today than it was yesterday, but this freedom is exercised within a narrower space of influence.

This tension points to a more fundamental question that goes far beyond British borders: how to reconcile national sovereignty and effective power in a multipolar world? The decade now beginning will likely be dominated by this question. The United States, China, the European Union, India, and also the emerging powers of the Global South are progressively redefining international balances. In this context, middle powers like the United Kingdom are faced with a crucial strategic choice: attempt to preserve their autonomy alone or seek new forms of integration and cooperation to maintain their influence.

Perhaps therein lies the ultimate paradox. Brexit had been presented as the dawn of a national rebirth. Ten years later, it looks more like an unfinished transition. The United Kingdom is neither the “Global Britain” imagined by the architects of Leave, nor the marginalized country predicted by its detractors. It remains a first-rate military, diplomatic, and financial power, but a power in search of a new national narrative capable of reconciling sovereignty, prosperity, and social cohesion.

Perhaps history will record that Keir Starmer’s resignation, occurring at the time of the tenth anniversary of Brexit, did not mark the end of an ordinary political crisis. It symbolized the closing of the first act of a historical transformation whose outcome still remains uncertain. For, at its root, the real question raised by Brexit was never about the relationship between London and Brussels. It is the one that now runs through all Western democracies: how to maintain control over one's destiny in a world where power no longer depends solely on the sovereignty one possesses, but on the influence one is capable of exercising.

And it is precisely in this field that the future of the United Kingdom up to 2035 will be decided. No longer in the debate over leaving Europe, but in its capacity to respond to a much more demanding question: how to become an influential power again in a world where no one can act alone anymore?

Bibliography

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Marco Alves

Master's degree in Political Science from the University of Paris Nanterre, in International and European Law from Grenoble Alpes University, and in International Relations and Business from the Institute of International Relations of Paris (ILERI). Has worked in 30 countries, including Brazil, where he spent 10 years working as a development specialist, notably for the State Government of Pernambuco. Worked for NGOs across the African continent as an economic recovery specialist in post-conflict zones. Currently serves as director of an international consulting firm specialized in social sciences and social engineering, operating in Burkina Faso, Ivory Coast, Mali, and Niger. France and Europe correspondent for CBN Recife radio. President of the Assembly of the IFSRA (Institute for Social Research in Africa). Social entrepreneur, speaker, and mentor for the international organization MakeSense. Consultant in strategic intelligence and risk management for the business sector.