Inbreeding at the civilization level

There's nothing hotter than Mark Steyn when he gets going on multicultural madness. I consider this one sentence a perfect gem but, please, do yourself a favor and read the whole thing.

By pretending that all cultures are equal, multiculturalism doesn’t ‘preserve’ traditional cultures so much as sustain them in an artificial state that ensures they’ll develop bizarre pathologies and mutate into some freakish hybrid of the worst of both worlds.