Let us give the Old Left, particularly its social democratic guise, credit that they did not seek the extirpation of our whole society and culture, but instead its transformation. What the New Left today fights for is far more revolutionary and utopian. A Europe that seeks a future where actual Europeans are a dying remnant, replaced by more vigorous immigrants, is but one manifestation of this worldview.

Leftists once heartily sang the “Internationale,” which promised “This is the final struggle” (C’est la lutte finale). Communists were quite wrong about that. History has moved on and left them behind everywhere but Cuba, North Korea, and Western universities. Yet their social-justice descendants believe the same thing, with a different favored fantasy class.

They will be proved wrong, too. The Corbyn vision has no future to offer most Britons. It would be incomprehensible to generations of Labour patriots who fought for Britain, her values, and her allies. The only question is how much damage to what is left of the West will be inflicted before the New Left is vanquished, too.