In all my time in college I only had one professor who I knew was a conservative, and he was an econ professor. And actually, I think he was more of a libertarian. Poli Sci., Philosophy, History, etc. were usually liberal to radicals. I actually enjoyed it, college is a great time to bang up against new ideas, and for the most part the kids who fall hard for the uber-lefty stuff in college grow out of it as the years go by. That is unless they stay on campus and become professors themselves.
To be honest, I think the far lefty environment is actually only a problem for lefties, because they don't get as many opportunities to hear dissenting opinions and are under a lot of pressure to conform.
Those right leaning kids that fight the power so to speak and go against the university establishment probably get more out of the experience because they actually have skin in the game.