In March, a South African lobbyist for white rights named Ernst Roets appeared across from Tucker Carlson in an episode on Mr. Carlson’s YouTube channel called, “Man Charged With Treason for Speaking to Tucker About the Killing of Whites in South Africa.

White racist nostalgia did not die out. It went quiet and also developed global connections with similar right-wing movements across the world, says Neeshan Balton.