Yeah, I don’t think this is “fair” or the right thing to do tbh. We’ll never agree on this. I don’t see why you absolutely feel the need to make fun of someone. It’s just weird af.Trans people (all people) deserve to be treated fairly and the same. Although that's not the world we live in that is what I believe.
Treating trans people fairly includes making fun of them, just like comedians make fun of everybody else. If you exclude them from that then you are giving them preferential treatment and are treating them (or everybody else) unfairly.