what do you think professors do? Seriously, how do youimagine yourself that job? Especially those in exact sciences andengineering?
They teach students, and indoctrinate them subliminally in their liberal ideas. The very fact that they decided to pursue a professorship comes from the fact that they are liberal first. There was an amusing study that showed that liberally minded people tend to want to be professors. So, they teach their chemistry courses, and throw in their liberal attitudes in between the formulas. I went to universities here, I saw it. The only conservative professor in my latest school ( who was the best infectious disease lecturer and the best preceptor), eventually left the school and went to work for a pharmaceutical industry.
And on a personal note, my significant other is a professor ( conservative:-D ) - a minority.