I can't speak for groups I'm not a part of but I feel like as a queer person and as someone disabled from working, being positioned as if:

.......bigots are making the jokes about us and we're supposed to be anti-humour like "no, take us seriously please".......

isn't a favourable position to be in

.........
I think that type of "don't laugh" attitude might work better in intimate settings but as a tactic to bring people onto our side, I dunno about that