I think you have misunderstood the objections that are really being given here.
Not suprising given how many posters seem to pop up just to make free with the misrepresentations.
Most women here, GC women, don't care how people dress. Most GC women would stand up for your DB to be able to wear whatever the hell he wanted to, to present himself to the world exacty how he felt most comfortable. Many of us grew up in the gender bending 80s, some of us even married one of those gender bending males who weren't gay or trans but were just young men, wearing stereotypically female clothing, whilst wearing stereotypically male clothing ourselves. I am one of those.
If that had carried on then fine, things would be far, far dfferent today. But in the 90s it all went ladette and guyliner, girl power and manbags, things fell apart and all those gendered stereotypes were re-concreted.
What I am resisting, OP too I think, is the removal of the words for women in order to include men. Inclusivity is not about removing a cohort of people but including more. But the gender ideology of today doesn't do that. It seeks to remove the words for women (rarely men) from all things female. This is to satisfy the needs and wants of men, transwomen or not, more lately some women, transmen.
As many threads across FWR discuss - that supposedly trivial crap others here are complaining about - that removal of accurately descriptive words, has a long, long reach. It may seem churlish to object to chestfeeding, pregnant people, people with periods, sanitary towels that remve their logos (Always and the Venus symbol), but it leads to otrher things that are more harmful. Like men being housed in womens prisons, babies being born dead because their mother, a transman, didn't say he was pregnant, so he was dealt with as a fat man with stomach issues. All sorts of weird and wonderful isues as awell as some very mundane ones, like being able to access single sex rape crisis support, or at least not being told to leave because you couldn't join in as there was a man in the room. All sorts of things that start wth the removal of the words for women.
Language matters. Toxic masculinity harms everyone.