Jez, the thing is that if self-ID goes through, somebody who jumped through all the hoops years ago to get their GRC will essentially be no different from a part-time crossdresser and a bloke who's realised he's onto a good thing. The other two will be able to get exactly the same legal standing, including new birth certificates, by signing a form. The police's new trans toolkit has just declared that non-binary officers should have male & female ID & use whichever they fancy at the time, FFS.
This is where the TRA lobby has got us. One big umbrella. Why should women be kind to just some of them? How do we know which ones to be kind to?
That's why, if old-style GRA holders want women to view them as 'the good ones' they have a hell of a lot of work to do.