The speech laws on campus are like those in a work place. Do you believe that work places should not be allowed to control what is said at their work places?
It doesn't matter if they enforced or not, they still existed in Christian controlled countries.
Christians were wrong because they were only used to protect words against God or certain religious beliefs from being said, not to promote peace. And campuses do it only in regards to certain places and/or people. They do not hold any criminal sanctions, blasphemy laws do/did.
There is a difference between rules in certain places and laws that cover every place. Do you not understand this? Not all rules are laws. On campus there are rules against hate speech, not laws. Laws against it would mean that the students who violated this would have a criminal record.
And now you are getting into the political partisanship. There have always been people on both sides who attempt to stifle free speech. It is not just those on the left or just those on right. That is why we have some protections in place.