That's the problem TRAs have caused.
As they rely on, for decades transwomen have used the women's loos. They think that's a Gotcha! when really it was/is always female socialisation coming to the fore. You see a transwoman come in, and yes it is usually quite obvious, and you think "oh, transwoman!" and swallow any misgivings you may have, maybe even go as far as to be chatty and nice, to prove you aren't a bigot, and the transwomen may or may not assume they have 'passed'. Even in the best circumstances a woman has had a second thought in a female space.
Now though, because of TRA demands, shouts, threats and actions many women have decided no, enough is enough, I revoke the unspoken permission. I will not stay silent.
Like me many women have struggled with this. Some have trans family members, friends, colleagues, all of whom are treated as they choose to present. My struggle continued even as I stood for a transman at his wedding. I have been there with him for 20+ years and all the surgery, behavioural training etc. And that cognitive dissonance hurts my sense of who I am. I truly resent the actions that are ramming into law what has been given as a politeness.
But TRA actions have changed my attitude and I will now stand up and say something if I feel put upon by any transwoman in a female space.
Basically, trans people have rights. Women have rights. Transwomen are not women and I won't accept them as such. Transmen are women, but they too have made choices that cause similar issues.
That's why I support 3rd spaces. I can't square a circle any more than anyone else can!