Yeah it's fucking obnoxious, I think there's a stereotype playing in their minds that dudes make dirty jokes so the feminist thing to do is go hard on dirty jokes themselves.

Reminds me of this completely unrelated time I was having a beer with a few workmates, this openly gay guy we work with grabbed this other dude's ass jokingly, knowing that it makes him uncomfortable. It was all taken in good humor but we made some kind of "HR!" joke and he replied saying "oh come on, you guys do this all the time". Motherfucker we don't, if I grab a female colleague's ass, I'll be promptly walked out of the building, joke or not.

It's a perception thing, idk.