Dump them all in Detroit and see what they can make for themselves. See if they can compete with the actual Americans who have no choice but to stay there. It could become a new reality show, Aliens versus Predator, Detroit. Hell, I might even pay per view that one.
You won't get much for your ticket in terms of bloodsport, Tim.
But if my experience in Minneapolis is any indicator, you'll be eating your words. A large contingent of Hmong were already DROPPED IN DETROIT, and in the Twin Cities about fifteen or twenty years ago and they turned slum neighborhoods into a virtual paradise.