Wow, there's so many flaws in your argument I'm not sure where to begin.
It seems you want minorities to listen to any and all bigoted opinions without protest and you want to treat such opinions as morally equal. When you're part of a minority that gets assaulted, murdered, and discriminated in general you don't have to listen to any and all people's opinions. If you think that I as a transwoman must listen to TERFs, social conservatives, and hand wringers then you're greatly mistaken. Their opinions are morally invalid for many reasons chief among them is their desire to control others. Being ostracized/protested by a minority is nowhere near being harmed by said minority.
And if a private party like a university feels its reputation is contingent on reaching out to those minorities then that's their authority to do so. It doesn't matter what you or I think either way. If you don't like that university then don't attend it. Or call your representative and see if they can cut its public funding. Either way, you, the comedy society, and the comedian are not entitled to any platform. Free speech is not about fairness, it's about whether or not the state or collusive corporations are intentionally impeding your ability to speak. The comedian isn't out of work because of one gig. The comedy society isn't defunct because it has to find another venue to present comedians. If said university went out of its way to tell every other venue holder to not let that society or comedian act in their interests then that would be true harm.
Also, the fact people throw the word censorship around seems troubling to me for a couple reasons. First, it's turning into the modern bogey man of our day. If Twitter bans someone I swear every other day I see someone claiming its censorship whether the account was by a political conservative or liberal. It's ridiculous. Stop using a word as a bludgeon to get your way. Deal with the fact private parties can and will protect their reputations. Second, calling anything censorship at will has the same effect as censorship especially when the opposing side has pointed out rightly the bigotry of a specific opinion (ex. people who refuse to desist from using racial slurs). And that's exactly how I've seen it used both on Twitter and on here. If you don't like being called a bigot then ask the accuser why they called you one. You'd be surprised how easily such an accusation is disarmed by one question (Wil Wheaton did that easily despite the slow uptake by certain people on Twitter yesterday).
Simply put, learn to interact with people, especially minorities. And stop blaming them when they're in the right.