I really could not give a fuck about what is or isn't a "biological" woman. It's useless info outside of one specific use of one specific act, which I'm not going to be doing.
Why is it useless? Cause I can't think of any way in which I should be treating one differently than the other. What purpose does debating that piece of info serve other than to upset someone who's already going through a lot of shit?
BTW, the person sending me that screen shot is a cis man