Good to see you, Mame!
On the subject at hand, I'm fine with trans women or transvestites, coming into the women's restroom.
I don't know what I think re community any gender bathrooms; I'd likely get used to it fairly soon, similar to the longtime usage of men's rooms by women at ill designed venues re womens' need to find a place go - no big deal.
As I said, probably in this thread, I am used to bathrooms for one person, that person being anybody waiting to use it; no qualms.
I've designed restroom facilities for a couple of small parks/playgrounds, but that was long ago now, and they were gender separated, with exception for young children with a parent, if I remember. Not that that matters re the thread, more saying that bathroom design interests me somewhat.