This is a cracking thread. A couple of points I want to pick up...
I am the 6-foot woman with (quite?) big hands but, bar the ocassional fleeting misgendering by someone who has only clocked the height and the shoulders, without actually looking at me, I never get mistaken for a man. As agonybeetle says - that's not a thing. As turph and clarice say, butch presenting women and lesbians is another matter, but again, not one remotely anything to do with males in female spaces. It's females in female spaces being mistaken for something they're not. It's not males in female spaces being clocked for something they absolutely are. Apples and pears. Not a gotcha. Not remotely.
And bespin, you have had this explained to you before, so I know you know this already, but women not saying "no", is a million miles away from women saying "yes". You don't even know how many times women have seen you in single sex spaces and simply melted away, never to be seen again.
I'm feisty, strong and opinionated. i still find it extraordinarily difficult to face down boundary-pushing males. I wouldn't say anything if I saw you in a female changing room, but my heart would be pounding and I would be on full alert. This isn't a minority reaction. Many, if not most, women are unsettled and threatened by male incursions into our space.
Brava, brava for this thread.