I just wanted post something @Datun said in another thread, because she summarises the issue so succinctly and clearly. If Datun is OK with it, I would type that out and send it to him (below):
It's not about transitioning or the lives of trans people. It's about women's rights.
Trans people should have the right to work, housing, access to medical services and wear what they like without fear of discrimination.
Non conformity to gender stereotypes should be acceptable on all levels.
Trans people are protected under the equality law, and the gender recognition act.
Men who self identify as women (without a gender recognition certificate) are campaigning to be ceded women's rights. Specifically for women. So all women shortlists and the right to be transferred to a female prison, irrespective of whether or not they are a sex offender.
It's also about dismantling the current protocols of sex segregation in the female spaces such as toilets, locker rooms, changing rooms, sport etc.
It's not about feminists. It's about the legal definition of the word woman. And whether the legal definition should include any man.
The campaign is for self identification, which is merely downloading and completing an administrative form.