It wasn’t a great week for the far right’s self-appointed crusade to reconquer Europe as a fairytale paradise of whiteness and Christianity. Maybe that’s because that whole idea is vaporware, rooted in a nonsensical social and historical vision and devoted to a losing battle against economic and demographic reality. But that quality of noble, doomed struggle toward impossible goals is both the far-right movement’s fundamental weakness and the source of its power and danger.

Viktor Orbán , the pudgy poster boy for “illiberal democracy” and object of a mysterious man-crush by legions of American conservatives, suffered a catastrophic electoral defeat in Hungary that felt, at least for a day or two, like the global MAGA movement’s Waterloo moment. As for Donald Trump , what is there to say?…