It should also be noted, UP, that higher levels of education tend to make people more liberal.
You would probably say that it's because of the influence of liberal professors in academia. While that's undoubtedly a factor, I'd argue that a much larger one would be the fact that higher levels of education tend to expose people to other worldviews and ways of thinking. While that doesn't immunize them against groupthink and "my side is always correct," it does tend to foster a greater concern for the rights of others. American conservatism, on the other hand, has strong anti-intellectual tendencies even in their mainstream...if something is too complicated to explain in ten minutes or less, it's not worth knowing, "real men always follow their gut," the glorification of unquestioning faith over critical thought, etc.
Add in the fact that you need a certain degree of higher education in order to qualify to TEACH higher education, and you get a situation where most of the people applying for higher-education jobs are already predisposed toward a liberal worldview. That's not some vast conspiracy on the Left's part; that's just how it shakes out.
I'm still waiting for you to give any examples of how liberal idiots are anywhere near as dangerous as conservative idiots.