The 2016 Brexit referendum triggered a wave of populism that fundamentally altered established political norms in the United Kingdom and wider Western politics. Ten years later, the UK is preparing to welcome its seventh prime minister, signaling ongoing instability. Despite initial promises, the country remains fragmented and faces a period of decline. The past decade has seen a rapid turnover of leadership, with six prime ministers serving in the last ten years. This political upheaval reflects the enduring consequences of Brexit and the challenges of navigating a post-EU landscape. The original expectations following the referendum have not materialized, leaving the UK grappling with persistent issues and an uncertain future.