I think “censorship” is not the word you want to use.
I agree with Father de Souza, but I would add that, in any case, there are rules that determine hate speech, speech that attacks the dignity of the person and speech that attacks the concept of equality. Personally, I think we already have the tools to deal with these things. In a functioning democracy, we need to encourage the most open exchanges and debates possible, not just at university, but everywhere.