Aditya Chakrabortty: Ten years after Brexit, UK is a divided nation

Aditya Chakrabortty writes that ten years after the 2016 referendum, Brexit has left the UK politically divided. New research shows tribal identities hardened, and political polarization has increased. The division has frozen national politics, making consensus on policy and governance harder to achieve. This matters because entrenched division weakens democratic debate, complicates policymaking, and fuels culture wars.