Your scare quotes indicate that when you say "censorship" you mean "the right to choose which points of view I/we will legitimize," I guess? Or "not censorship at all as it turns out?"
Dissenting views need to be given a platform, even if they make some students uncomfortable.
Should newspapers be forced to print my letters to the editor, even if they are a bunch of fevered ravings, because my incoherent hate-screeds need to be given a platform?
If you want to promote unpopular points of view, you may have to build your own platform. And 2017 is actually the best time in history for this very thing, and people who do no-kidding advocate genocide seem to have no trouble banding together and making their arguments available to anyone who's interested.