Interesting that transactivists suddenly want mixed sex spaces having dismissed them as "othering" and "outing" for so many years. Access to the unclothed bodies of unconsenting women and girls has always been a high priority for so many men claiming to be women.
Presumably mixed sex spaces are the current demand in the face of the clarity of the SC judgment. Thus demonstrating the deluge of incoherent and ever changing demands from transactivists as they attempt to maintain their "sacred caste" role at the top of the oppression hierarchy.
In relation to your earlier claim that
"it’s not accurate to suggest that trans children themselves are unaffected by the climate around this. Many experience bullying, stigma, and distress precisely because their identity is dismissed as either a phase or a threat. Safeguarding should mean protecting all children — including those who are trans — not framing one group’s existence as the cause of harm to another".
There are countless mentally vulnerable children who, once they announce they're confused about their sex have been immediately affirmed. Reputable professionals recognise that confusion / unhappiness about your body may well be a passing phase. Huge damage has been done by transactivists in promoting "immediate affirmation", often leaving mentally vulnerable children in the clutches of extreme activists and alienated from their families and those who love and care for them. Yes, safeguarding is about protecting all children which is why the recorded attempts of transactivists to remove this group of exceptionally vulnerable children from basic safeguarding principles has been so dangerous.
The reason why you're getting such robust responses @Collat is because women are sick and tired of society abandoning the welfare of women and children in favour of this powerful ideology that's based on a set of incoherent and ever changing beliefs and demands.