Unfortunately I can't vote on this poll because you've reduced it to black and white. This subject, like mostly everything in life, including gender, allows for a wide spectrum of greys.
There's still lots of humour about black people (a lot of it done by black people), but very little is racist humour.
There's still lots of humour about women (a lot of it done by women), but very little is sexist humour.
There's still lots of humour about Jews (a lot of it done by Jews), but very little antisemitic humour.
I wonder if there is a pattern here...
I've already expressed my views on Jerry Seinfeld's joke. I believe, if we want to be taken seriously, we need to get over ourselves, and differentiate between transphobic jokes and jokes about transsexuality.