Here:
France, more than any other country, has been the source of these ideas. ...
A few months later, I met the leaders of a local anti-immigration group called Retake Calais. When I asked if they wanted to see the migrants leave town, they lamented that closing the camp — which has since been bulldozed — wouldn’t help. “They’re sending them to all the little villages in France,” one of them told me. “In two years the villages will be dead.”
“It’s the great replacement,” his friend added, echoing the title of a 2010 book by the French writer Renaud Camus, which paints a dark picture of demographic conquest in the West. “They want to replace us.”
