Copyright The New York Times

Hans Schreurs, 66 and the owner of an old-fashioned snack bar in the Dutch town of Venlo, is doing well for himself. Business is booming, he owns his home, and he and his wife are locally famous for their deep-fried breaded eggs, known as friet-ei. Still, Mr. Schreurs says he worries that his grandchildren are competing with immigrants for their own shot at prosperity. That he is why he plans to vote for Geert Wilders and his far-right Party for Freedom in Wednesday’s parliamentary election. “This country is getting too full,” said Mr. Schreurs recently, speaking from behind the counter of his automat-style fry shop, Automatiek Piccadilly.