We can't afford it. Some people like Michael Moore say that we should just divert funding for the war toward Socialized Medicine, but the fact of the matter is is that we can't afford the war either. We are already borrowing money to finance a lot of the dumb programs already in place. Government spending is out of control, and we need to exercise budget restraint now, not consider new areas to increase spending.
#5, you're surrounded with a lot of proles already. The difference from the world of "1984" is that your culture steadily ignores their existence until riots happen.
P.S. Despite the Hypersocialist vision of "1984", Britain still hasn't become Oceania to be always at war with Eastasia! If there's a "next" for socialized medicine in the USA, it would have appeared in Europe by now. Darn it, I know these points are never explored on Rush Limbaugh, but could you at least come up with something that I can't destroy in less than 30 seconds?