How many staff are conservative?
Just how much balance and discussion of differing viewpoints actually takes place in those bastions of 'higher education'?
I think there are quite a few college educated Republicans, but I think you will find them in fields where there is no denying reality. (STEM)
Other fields can ignore all or part of reality, and even get away with it for a while, but in these, reality rears its unforgiving head with amazing regularity.