Hey Ma_R, is that a novel, or a movie, where you are getting your swell scenes of apocalypse? What's the name of it, if you don't mind my asking?
...This situation is going to explode, although I do have a suggestion. 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.
Gonna have Sylvester, Arnie, and Mel in the starring roles?
Thus spake Ma_R; "Yo, I get my sense of reality from Hollywood, yo."