We wouldn't do that to men today who wore dresses as men - so why don't men who are not comfortable with restrictive & violent models of masculinity just do something about it - instead of claiming that they're women?
Because it is not about wearing dresses, it is about invading women's spaces.
I mean, take "Danielle" Muscato. He doesn't want to wear a dress, he doesn't want to remove his beard, he doesn't want to change is body, but he is a woman, because he says so. And takes up space in women's shelters.
If you want to see what purpose something serves, then look what it actually achieves.
The trans movement has so far made lots of women very unhappy because their newly acquired gender identities mean they have to fight with other women they'd get perfectly along with if not for their gender identites.
It has made a lot of children, many of the probably homosexual, irreversibly infertile.
It has resulted in women being sexually assaulted in spaces where previously they would have been safe. (Perfectly safe, in some; males did not previously get to shower with women in prisons. Women would not have been told to suck it up if a male guard had molested them in there, but now, they have to endure male criminals).
Has it made transwomen any safer? I haven't heard anything about that. Where is the decrease in transwomen suicide rates, now that they are prioritized over women? Where is the decrease in violence against transwomen?
Can men now wear dresses without being considered weird? No, they can't. Men cannot walk around in dresses without people assuming they are trans and identify as the opposite sex.
We do NOT live in a world where a man can walk around in a dress and people just look at him and think "oh, a man", the way people used to do with women in trousers. (Nowadays, a woman who wears trousers has to make up for it in peforming femininity some other way, or she'll be considere a transman)