Oof. Ok, firstly, not angry. Just scared and bewildered, and a little lacking in bandwidth right now. The last few weeks have been a bit much.
On the op's proposal re: surgery thresholds i.e. 'you must be this transitioned to use the facilities':
I don't think trying to split us into good trans and bad trans people will help in any meaningful, lasting way - this kind of 'hierarchy of acceptable deviance' just seems to create more unhelpful ways for scared people to lash out at those around them in order to claw some temporary respectability points, and drives dissonance and rivalry within marginalised groups.
The key dilemma for any such proposal remains: What is the actual purpose here? What problem does it solve?
Are penises the problem, are Y chromosomes the problem, is male socialisation the problem, or is there some fundamental essence of maleness that inherently taints all it touches with a single drop?
@Helleofabore - you seem to be asking if trans women would enter a space that has been marked by request in line with recent EHRC guidance to exclude them? The recently issued EHRC guidance reiterates that this is acceptable if a proportionate means to achieve a legitimate aim.
Is forcing me to humiliatingly and potentially life-threateningly dangerously out myself to every single person in a public space every time I need to go for a piss, at great cost to my own mental health and wellbeing, a proportionate means to achieve a legitimate aim?
What's the aim? Elimination of trans women from single sex spaces. (Or protection of sex-based rights, if you prefer to use the dogwhistle).
Is it proportionate? You tell me. I've only lived here for a couple of decades.
Are there other reasonable alternatives? Yes. You could...not?
I suppose if the Equality Act 2010 didn't exist then there would no issue here (we'd just be back to having basically no rights or protections) - maybe you ought to campaign against that one next - couple more years of Daily Mail, Telegraph, Times and Guardian headlines under your belt and I reckon you'd manage to force the overton window far enough along to be able to manage it.
With EA2010 in place, however, this guidance appears to be self-contradictory and unenforcable. I think it would largely depend on how self-destructive I was feeling on a daily basis whether I would either bother to challenge it, resign myself to an existence where the dream of not being harrassed daily is just a memory, or just stop existing in public anymore.
They're all pretty grim, really.