You think America has an immigration problem? Spend some time in Europe. Visit the “dish cities” that ring French, Belgian, Dutch and Swedish towns, named for the satellite dishes that connect their inhabitants to ancestral countries. Meet the unassimilated, marginalized, bitter youngsters penned into tower-blocks.

French politicians euphemize immigration as “le problème des banlieues”, the suburb problem. Well, I’d gladly swap our problèmes for yours; our banlieues, too, come to that. The United States has been stunningly successful at making newcomers want to belong. “Every immigrant makes America more American,” said Ronald Reagan, in a characteristically upbeat phrase. And if you’re going to take immigrants from somewhere, you could do a lot worse than Latin America.