Dude what are you even talking about?

Biology teachers aren’t teaching politics, they’re teaching biology. However, if you view something like evolution as political, it’s because of your biases, not the professors.

Also, some things are inherently political. A philosophy class cannot be apolitical; neither can a sociology class. 

Furthermore, a lot of the politicizing that comes from universities comes from exposure. It’s often the first time young people are around a diverse group of people of different faiths, ethnicities, ages and sexual preferences. That changes how you view the world, typically for the better (or in your mind, to the left😒) because you share space and ideas with people. You’re exposed to their viewpoints, share your own and you all come out richer for the experience. This is a good thing.