No, as I said before, I would humour them Waitrose. I'm usually polite to people in person.
That's not the same thing as supporting legislating on their behalf, when it infringes on the rights of women.
Actually, what stands out to me about this entire issue is how arrogant it is to call yourself you're not and you cannot be.
I often feel like I could get away with redefining myself as a man. I have some traditionally male behaviours, wear 'men's' shoes and clothes regularly and do traditionally male things.
I would never, ever decide that I could therefore be a man. I would think that so disrespectful towards actual men.
Oppressed sex or not, they are men, they know what it is like to be a man, they have usually gone through things that most men go through, which aren't always a heap of fun.
For me to call myself an actual man, and demand everything, every recognition that went along with that, would be, in my mind, fraudulent, as well as disrespectful and arrogant in the extreme.
So why is it Ok for other people to do it? It's not. As long as you are quiet, discreet, don't cause any hassle for the people of the opposite sex, then you can probably get away with using their facilities and being treated as though you were of that sex. It's called going about your personal business. And you shouldn't be discriminated against for doing so.
But presuming to stand for them in a political arena, to demand you be included in their spaces, and to claim that you are, technically and legally and in every sense one of them, is utterly, completely wrong.