CHRISTOPHER CALDWELL: Land’s End.

Whomever Britain chooses to lead it away from its era of multiculturalism, something big is going to change. In the United States, most deep reforms must travel a narrow road of constitutionality and survive the scrutiny of the Supreme Court. Britain has a different constitution. The democratic prerogatives of the British Parliament are almost absolute. It is true that, at the turn of the century, Blair enshrined the European Convention of Human Rights in British law and empowered a Supreme Court to vet parliamentary decisions. For now, such institutions and treaties impede any program of large-scale deportation. On the other hand, Britain’s proudly (or notoriously) sovereign parliament could abolish these Blairite guardrails in an afternoon. All three conservative leaders—Farage, Badenoch, and Jenrick—have, in one way or another, declared themselves open to the idea. Even relative to Brexit, or to what Donald Trump has done thus far in the United States, this would be an earthquake. It would take at least until the next election, but on present trends it cannot be ruled out. Maybe that will turn out to be what Brexit was for.

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