How will we explain to our children that one of the greatest nations of civilization fell not to the fascists and monarchs of Europe nor to the industrious kamikaze Japanese of old nor even to the communist Soviet bear but to an invasion of unarmed and unskilled peasants from Mexico?!
Explain that it was the elite globalists, greedy corporatists, scummy drug cartels, social progressives aka communists, keeping up with the Jonses, and American Idol.

You might also explain that our undoing was caused by rampant moral decay from porn, pedofilia, Pot, Meth, Heroin, Cocaine, booze, R-rated and slasher movies, gameboys, Satan-worshippers, coo-coos and MTV.