Well it will either be this or they will be true believers who will just think it’s wrong to refer to the actual sex of the trans person.
This is a fail of the mad ideology which insists on sex denial. If this movement were able to say, this is your actual sex, but gender identity is different, we wouldn’t be in the whole of this mess as recognizing sex would mean acceptance of sex segregated spaces and sports. It would also mean recognizing sex in situations like, well, sex.
I also think that the mental health of trans identified people would be better as they would not so desperately need to try to make others believe they are something they never can be.
But gender ideology chose not to do this, and institutions and governments and law makers have capitulated to it.
But I think that we need keep our criticism firmly on the ideology, structures and institutions promoting or capitulating to this crap, rather than sneering at individuals who have fallen for it. I see that woman ( and her husband, and even more so her child, at least potentially) more as victims of an ideology than people to be scorned.