Don't count out the survivability of youthful idealism in an age where nearly none of the youth understand the true meaning of responsibility, much less hardship. Why change your ideals when there's nothing to test them?
I do agree with some of your post, shock, but not all of it. I won't bother getting into it, as I'm about as entirely sick of talking politics right now as I've probably been in the last 4 years, but I do agree with your general assessment of McCain and Palin. It's funny, because the more I've talked to liberals, conservatives, and independents, the more I realize that a lot of people feel the same way about the Republican party and the way the campaign was run. And there's a surprising sense of sympathy for McCain because of that, because they realize that a lot of what went wrong was the fault of the party. And I think love of the party is at an all time low, not just because of that, but because of a lot of stuff. I see more and more people (on both sides, though I see it more on the conservative side because I'm obviously much more conservative) moving to call themselves independents. It's interesting, and I think quite necessary if the Republicans are ever going to remedy their habits.
Also, you're right, social conservatism does usually fail as the natural habits of man and his immortal love of himself eventually take over, pride and its demands growing stronger with every successive generation that thinks itself more enlightened than the last. This has never struck me as a good thing, particularly since I find the average young person to be all but subhuman at this point. Yeah yeah, don't bother writing 40 paragraphs disagreeing with me, because I know that most people think we're evolving and becoming greater, but I have only seen evidence of Devolution in my lifetime. I wish I had an optimistic outlook, but alas, my faith in humanity is at an all time low.