Long-term social and demographic changes—and the conflicts they create—continue to transform British politics. In this accessible and authoritative book, Sobolewska and Ford show how deep the roots of this polarization and volatility run, drawing out decades of educational expansion and rising ethnic diversity as key drivers in the emergence of new divides within the British electorate over immigration, identity, and diversity. They argue that choices made by political parties from the New Labour era onwards have mobilized these divisions into politics, first through conflicts over immigration, then through conflicts over the European Union, culminating in the 2016 EU referendum. Providing a comprehensive and far-reaching view of a country in turmoil, Brexitland explains how and why this happened, for students, researchers, and anyone who wants to better understand the remarkable political times in which we live.