Committing the sin of commenting without reading all the previous ones, so apologies if this has already been said. In that case, seconding.
Women have been misgendered since the year dot. If you've never been in a group greeted as "Hi, guys!" erasing every woman in it you're very lucky. And the default pronoun being "he" and conveniently erasing women in history, arts, science, etc., etc., etc.
We've been dealing with that forever. Almost always by soldiering on and "ignoring" it. If we started threatening suicide, can't you just see the reaction?
So, no, not terribly sympathetic to anyone throwing fits about misgendering. Deal with the massive issue women face first. Then we'll talk.
And there's another point. Every group gets to define itself. You can't just call yourself black (hello Dolezal) or Jewish because you feel like it and/or because you'd like to benefit from affirmative action. Except women. Everybody else (read: men) get to define women and women are supposed to shut up. Well, that's a new idea I've never heard before.