The parent did not say that the jokes about men were at technical conferences. I believe he was referring to all domains, not just programming / technical conferences.
This is hacker news, so I would expect we would target technical arenas. I'm not going to argue the other stuff, because it is completely off-topic, derails the conversation, and is generally uninteresting to other readers. I have also found that internet arguments about men v. women get ugly and out of control very quickly.