Well, let's first look at the areas in which we're in agreement. Yes, comedians should absolutely have free speech to vent about whatever they're feeling, and make whatever jokes they want to try out.
However, if someone is legitimately offended by their speech, they shouldn't be able to suddenly hide behind the veil of, "Well, I can say this because I'm just a comedian -- and you're the one who is too hypersensitive for reacting to it."
I never followed the J.K. Rowling fiasco, so I can't speak to that -- aside from saying OBVIOUSLY it's unacceptable for anybody to be sending her death threats. But there's a difference between people openly threatening her versus asking her to engage in a dialogue.
Comedians are presumably willing to "go there" because they want to make it easier for people to have difficult discussions, and they're trying to use humor as an avenue to have those discussions. But if they then turn around and respond to valid criticism by saying, "Oh, but I was just trying to be funny because I'm a comedian...so please hold me to a lower standard than everybody else" -- that's the epitome of disingenuous entitlement.
Chapelle seemed to be saying that White LGBT+ people should "count our blessings," compared to Black people. He is trying to "rank oppressions." That is the very bane of toxic wokeness/wokeism. He certainly has the freedom to take that position...but then he seems to want to run away from it (or, I should say, drive away in his limousine) when called out.
Steve, if I've misinterpreted anything here in terms of YOUR intent of what you've been trying to say, in relation to this controversy...then please correct me.