"Face facts, the republicans can't win without a base."
While that's true, it's also true that when the base has not strongly supported the Republican nominee the results have been Presidents like Carter and Clinton - and the base understands that.
Cowards allways accept the lesser of two evils.
There's a strategy for the future: "Our guy's not nearly as crappy as their guy!"
Worked great for that weaselly loser OldBob Dole, didn't it?
Many of us say, and will continue to say, "screw both Big Stupid Government parties."
And obviously the base can live with that (as evidenced by the election of those two) and this is why McCain apparently believes that he can win without the Republican base. It would be far preferable for a Democrat to win the Presidency over any Republican who dismisses the conservative base, because anytime a Republican wins without the conservative base, it emboldens other cowards in the GOP to try to do the same thing. Eventually you will end up with a conservative base without a perty.