Higher standard or politically correct standard?
Full disclosure. I teach at a community college. I am also a full on democratic, liberal, feminist, progressive who doesn't see anything wrong by and large with PC or diversity.
I should have the right to get in front of my class and say that feminism is evil. However, I should expect to be called out and able to support my ideas. I should also be expected to give full allowance for the other side to speak their minds.
Students should able to say what they want, discuss what they want, protest and march for what they want. If you want to go march for the Klan on campus and hang a Nazi flag in your dorm room, go for it. Just know that you can't incite violence and know that you might be shunned and not invited to the good parties.
I understand that there is some tension:
Students deserve to be in a place where they feel safe and comfortable (a safe and comfortable learning environment). At the same time, students have a right to learn about, talk about, explore, reject, embrace, possibly uncomfortable and unpopular ideas.
In the end, while I agree that words can hurt (me going up to a gay student and calling him a faggot is hurtful certainly) words don't hurt in the same way that physical violence hurts, and we shouldn't treat them in the exact same way.