Sometimes it's helpful to analyze our reaction to things if we can find a similar situation where the politics are reversed.

Go to any public university in the South, and you can hear essentially the same sentiment in your post, coming from young conservative white kids who don't want to question the way they were brought up or learn about other cultures, gay rights, etc.

I think the idea of a university is that it's good for the intellectual development of both the conservative southern kids and the trigger warning kids if they occasionally have to struggle with new ideas outside their comfort zone.