The thing is, FP, that as many on this thread have said repeatedly, we were ok with people like your friends 'living as women'. Even though we don't know what that means, they were doing no harm, and I can't think of a single biological-realist feminist I know who isn't tolerant and inclusive in their thinking and the vast majority are leftie in their politics. I believe that we have one life, and should live it in the best way we can to make us happy, so long as we don't hurt others by doing so, and people like your friends don't sound as though they hurt anyone.
It was when the TRA lot started telling everyone that we had to declare pronouns, that we should be raped to death for not believing their fantasies, that anyone expressing a different view should be cancelled etc that things changed. Feminist meetings have been broken up with violence, women have been prevented from watching a film, for heaven's sake, and a children's author is reviled as the Devil incarnate for saying that people can't change sex. Women lost careers and reputations for not humouring men. If we hadn't fought back, there would be nowhere that women could call our own, even when we are at our most vulnerable. Prisons, hospitals, refuges, even public loos, where (not to put too fine a point on it) we have our knickers down in a space that is often set apart from the rest of the restaurant or bar.
It may well be that 'innocent' transwomen are suffering as a result of Stonewall and its policies, but we have said that that would happen all along, only to be castigated for doing so, even on here. It didn't matter how often we said that we weren't conflating transwomen with rapists, but that if men are allowed into women's spaces some of those who avail themselves of that right will be rapists - we were shouted down, and no doubt will be again - it's been like plaiting fog at times.
It's not fair to people like your friends. It's rubbish. But as a feminist, my first concern is the rights of women, and that means that fighting against TRAs had to take priority. Now that the battle appears to be being won (or at least that defences have been breached - it's too early to celebrate) things might settle down to a point where we can have an adult conversation instead of the No Debate we had before. That would be good, IMO.
As I've said, I don't think that people can ever change sex, and I do take Galaxy's points, but I do see a difference between surgically and hormonally transitioned people and those who expect everyone to bow to their declared 'feelings'. I also believe that it is up to those wanting change to come up with the logistics to let it happen though. As Glorianny keeps asking, how would that be policed etc etc? I don't have the answers, but if the people themselves can make suggestions, I'm sure that most people would be willing to listen. It's not enough to shout that women don't have the solutions though. Men have been telling women to do the (metaphorical) heavy lifting for far too long. I'm not doing it for them, or expecting other women to do it either. Decades of fighting for women's rights have moved us beyond that.