It's up to trans people to make reasonable demands that don't shit on women and girls and I will support them in that but I'm not their mum and I won't make this my problem to solve.
Yes to this. I don't have all the answers, no one does.
Yes, some TRAs will demand that they want what they want, which is in to women's spaces. (As noted, no trans men longing to get into male prisons). A third space meets the real need of safety and dignity and recognition of rights without allowing this as the solution which would expose it for what it is: validation and overcoming boundaries around women. A third space offers a choice that meets Equality Act reasonable adjustments: you're not ok with your sex allocated provision because of privacy, dignity, safety, ok you can opt into a specific provision if you'd prefer, without throwing women under the bus. With the prison service equally able to impose a transfer to trans specific provision for someone using trans ideology to make a nuisance of themselves and cause disruption in male provisions.
Yes, many men are vulnerable in mens prisons. That's not ok at all, no one should be abused or assaulted and it shouldn't be acceptable. But those men are not claiming to be women and demanding to use women's facilities. To provide a specific trans wing and immediate transfer there to a situation where everyone is trans and its everyone's daily normality I think may drop the large numbers of male prisoners identifying out of the blue: a normal prison wing removes special privilege and recognition from other non trans prisoners, different treatment, or the potential of getting into a women's prison. If that was the immediate option offered then many casual/piss taking 'transitions' may fade away, the perceived benefits would drop unless they were a genuinely trans and vulnerable person.
I do understand not wanting to agree to perceive privilege and to stay firm to the lines of a man is a man is a man even when there is a constructed vagina and breasts, and those needs should be catered for in the male estate - some men have breasts and wear dresses get over it. I do understand women are very angry about this and losing patience. I just think that providing that reasonable adjustment of a third space is a neutral step rather than a perceived aggressive one, it's one that is hard to argue with because it meets the explained needs on everyone's behalf (and leaves the only remaining argument of validation with no where to go) and discourages and deals with pisstakers using performed womanhood casually for personal gain which is a very major part of this.