What is this bullshit about 'share gender identity'?
I don't have a gender identity, I just have a physical reality of a female sexed body. That's it. That's all.
Let's be honest about this, a man who wishes to say that he 'shares a gender identity with me' has zero interest in my identity, my words for it, my feelings, or anything at all other than my female body. That is what he wants when he says he is coming in a space with me because we 'share a gender'. He is solely focused on my sex. No other part of me is in any way relevant to him. And his 'gender identity' in this sense is nothing more than saying he feels like he imagines being a biological woman might feel.
So he would like to use me as a prop in his self expression.
And unbelievably we have other men wibbling about the right of him to use me so long as his self expression doesn't break me to an extent that it would get inconvenient in the press. That is the only aspect they are remotely concerned with.
For those still dithering about whether or not sex is binary, fgs how much evidence do you need? There are two sexes. One gets to use the other freely without boundaries and to have identities and control everyone' s language and express themselves. The other gets to shut up and put up, and take the dirty end of the stick at all times, with bullying and worse if they fail to do this with a smile.
Just try saying 'I'm not 'cis'' or 'I'm a biological human female' and see what happens. If you're a man, people will applaud. If you're a female, the scolding, threats and worse start right here.