"Misgendering" = refusing to pretend that someone is the opposite of what they actually are.
I'm sorry that some people in society have led you to believe that this is a reasonable thing to expect people to do, but those people don't actually speak for the rest of us.
If we are forced to pretend that men are women it becomes much more difficult to object to them being in women's spaces. Which is precisely the point, and precisely why we are being forced to pretend that men are women.
We need to regain our grip on the truth.
I started using preferred pronouns out of courtesy, until I saw how it was being used against us. Until I saw men competing as women in the Olympics and men being celebrated on International Women's Day and male rapists being housed in women's prisons and women no longer having single sex rape crisis support.
And now I won't pretend any longer.
We gave an inch, you took a mile, and now unfortunately we are going to have to take the full mile back, including that first inch.
That's why I can't bring myself to use preferred pronouns anymore, even when the person is totally sweet and innocent, even for someone like poor Brianna Ghey. I just can't do it. Because of what it has led to.