Ten years after the UK’s referendum on leaving the European Union, public opinion has shifted, with a majority now believing Brexit was a mistake. The 2016 vote, framed by then-Prime Minister David Cameron as a defining moment, led to nearly three years of negotiations and two changes in leadership. The UK formally left the EU in January 2020, concluding 47 years of membership. Recent polls indicate widespread regret over the decision to leave, suggesting a desire for re-entry into the bloc. The initial promise of resolving long-standing tensions with the EU has not materialized for many Britons. This sentiment reflects a growing dissatisfaction with the economic and political consequences following the departure. The referendum, once touted as a final resolution, is now viewed by many as a misstep.