I can't see how anything will cancel comedy, it just changes along with what people think, want, like, which changes over the years
But, there is a problem with venues deciding on behalf of everyone else sometimes. Not because they can't sell enough tickets, or someone isn't popular enough, but because of a certain view they might have.
Leave it to the public to decide what they do or don't want, but refusing to put people on stage,is just censoring. There are lots mentioned here I personally don't like, loads of others I do... but I wouldn't cancel a comedian for being offensive, I just wouldn't go myself.