I think the smart women will get there. They are still in the "but we shouldn't define women by their biology, people just want to pee, poor fragile souls having such drastic surgery" stage, and they are in a media bubble.
But the more TRAs get what they want, the more visible trans women who don't fit that mould become, the more opportunities that should have gone to female people are seen being taken up by male, the more erst-while allies will realise this is something they cannot support.
Because this movement contains the seeds of its own destruction. It cannot be any other way because the assumptions upon which it rests are not real. The future it is trying to bring about (one in which no one cares about sex, gender is all that matters) is not going to happen by following the TRA path, no matter how sincerely they may believe it should, because like it or not, (and FWIW I don’t) sex is significant in our society, our sex does make a difference to how our bodies function, how people treat us and how we see ourselves, and pretending it doesn't, and that men who want to be seen as women are just the same as people who live their lives in female bodies won't change that.