Just my opinion, but you're falling for manufactured outrage. As a progressive person who loves dave, my news feed algo has been chock full of all the outrage articles and I deliberately haven't read any of them, but the headlines are all dax level manipulations.
This special did have some jokes that felt intentionally mean to make a point of pissing off the people who already hate him. It definitely worked. He also has a very emotional story about a trans comic friend of his who killed herself that you could tell really had an impact on him.