Fannycrevasse
That sounds really hard and, tbh, no, I wouldn't like it. I'd hate it in fact.
It sounds like these women have been as respectful as they can be in asking but that doesn't take away from the fact its incredibly hurtful for you to be asked.
I don't disbelieve you but I'm amazed that, in the recent climate, anyone would ask given that there could be no 'wrong' toilet given the angry protests of many TW and they risked being the ones asked to leave.
Tbh, it would be obvious to most people that you were a woman the minute you said, "Yes," whereas TW still sound like men. I also don't think that many would respond with a simple yes. Especially if dressed in male clothing.
But that probably doesn't help. Especially as you say your voice can sound quite gruff when you're upset.
I don't know what the solution is for you, personally. I can't imagine I could come up with a suggestion that you haven't already considered or tried.
So where does that leave us?
We can't just say that it's OK for TW to use female toilets because there are some women with hormonal conditions that make them appear more masculine and it's hurtful for them to be challenged.
Perhaps, if we hadn't been routinely prioritising men in women's spaces for the past 10 years, women would be less vigilant.
Perhaps if the government had prioritised some of the underlying causes of women being unwelcoming of men in our spaces (VAWG), rather than just forcing us to accept them, women would be less vigilant.
Perhaps if men just sorted themselves out and posed less of a risk to women of their own volition women would be less vigilant.
But that's not what has happened.