Emily's Cat
Rarely prone to hissy-fits
A few of us terfs were talking about this in a café in Galashiels last weekend and as far as we could see there was nothing to prevent any of us from simply applying to become men without changing anything about our appearance or behaviour. A couple of the bolder ones said they would do it, and that it would be fun if lots and lots of women did.
If you can't stop the runaway horses, might as well hop on and least enjoy the ride.
I also think that if more and more females do this, it will really start hitting home. It's like that 11th circuit court case here in the US recently, where the ruling came down that single-sex changing rooms should be recognized, and that the transgender identified female plaintiff did NOT have a right to use the male locker room, and that their gender identity did nor override existing Title VII and Title IX provisions on the basis of sex.
There's a good chance that if the plaintiff had been a transgender identified male, the ruling would have gone differently... but now the precedent is set. Now males are being inconvenienced and made uncomfortable. So now, someone will take notice.
IIRC, there was a similar thing in the UK with some natural springs a while back - the female section was obligated to allow transgender identified males in... but when the females began to identify as "men", the males very quickly responded with "Nope, we're not doing that".