Obviously a disgusting person
and I completely disagree with everything she's saying. But speaking generally on the issue of how someone identifies, whether to refer to them as 'she' or 'he'... for me personally I'd go off how they identify themself moreso than anything physical. I can see the argument for basing it on the physical stage they're at with transitioning, but from personal experience (one of my close friends is female to male trans) there can be a lot more involved than just deciding to transition, and then going through with the process. In my friends case, he began transitioning and was given hormone treatment etc, and was given surgery to have his breasts removed, but before his last operation, he was refused treatment for psychological reasons (I won't go fully into the details coz even though noone knows him I feel a bit weird giving really personal information about him lol), but it had nothing to do with him not being a man/living as a man etc, and this then had consequences for how he's identified legally etc. However in every aspect of how he lives, considers himself, looks, is treated by others, he's a man... except he has a vagina instead of a penis. And it's unlikely that he'll be allowed to have that changed so he's going to have to accept it. So i kind of think that if someone was to refer to him as 'she' because of it, it would be really unfair, and unnecessarily upsetting for him, because after all it's just a label (so I don't see any danger in it tbh) but for someone like him it has a much greater meaning, and why should someone else's view of who he is supersede his own.
I think this Ada person seems like a very extreme example though and definitely not representative of most people who go through (but don't complete) their transition. Like most groups there'll be people who draw negative attention to themselves and tar everyone else in that group with the same brush.