So women who don't want to be behind a closed door in an isolated space with a man because they've experienced male violence in the past, or they have a faith where they can't be alone with a man, or they want privacy to deal with the stuff women's bodies do (periods, miscarriages, etc), or they just want a single sex space, they don't matter? As long as the trans-identifying man isn't doing anything "nefarious" and it might not qualify as an offence under law, it absolutely doesn't matter if women are desperately uncomfortable, frightened or self-exclude from spaces?
Right.
First off, at no point did I suggest any of this is unimportant or that women "don't matter", so I'm puzzled as to how you can possibly conclude this is my position.
My post was to clarify that, as things stand, it's both wholly unrealistic, and inappropriate to expect barstaff and suchlike to police toilet use on the basis that "it's the law", as @SingleSexSpacesInSchools suggests.
The SC ruling did not change any laws, and nor will the upcoming EHRC guidance, so absent of any new laws being made, the situation post-EHRC guidance is going to be no different whatsoever to that which pre-dated the SC ruling.
Again, the SC ruling pertains to EA2010, and the scope of that legislation extends to appropriate facilities being made available and clearly marked. It does not provide any means for organisations to enforce compliance by individuals, therefore organisations and employers can not reasonably expect employees to police third party use of those facilities.
The part of my post you quoted is relating to the fact that if people are expecting anything to change as a result of the SC ruling, especially if they are expecting non-complying people to be removed from toilets, then they are mistaken, because the law is still precisely the same as it has been since 2010, so individuals, organisations, and the police have no more means or authority to remove people from toilets than they had previously. You might be able to argue that a man in the women's loos is causing "fear, alarm, or distress", highlight that to attending police, but then it will be entirely up to the officers attending (assuming they actually attend and the individual is still present at the scene) to gauge whether the individual in question is, in fact, committing a public order offence or otherwise, and if all they are doing is using a toilet for it's intended purpose, then it's highly unlikely the police would judge that to be a public order offence.
If it isn't happening now, it's not going to happen post-SC or post EHRC guidance without some change in the law, or some new law being brought into being, as per OP.