Hear hear, Sandman.
Rip, I'm sure that liberalism has caused plenty of problems, but it's also done some damn good things for this country, many of which have been listed. Conservativism has also managed to fek things up pretty good. Liberalism is the force that puts reform in motion and gets our tulips off the ground. Conservatism keeps it in check and makes sure it doesn't go to far. Liberalism exerts the same force on reactionary, conservative movements. They're both necessary, as much as I dislike a lot of conservative thinking.
Brainless, knee-jerk liberals piss me off at least as much as the conservatives do. It comes down to being intelligent about what you stand for.