What a load of vitriol and 'whataboutery' on Mumsnet today! I sincerely hope this does not represent everyone on here...
The problem that some women have with some men is undoubtedly real. But trans-folk in general are not the right target.
In fact even taking a 'women first' stance, this solves little, whilst it certainly makes life more terrifying for those decent trans men (biologically women) and trans women (biologically men) who you want to use toilets mismatched to their gender-presentation, for example, despite them perhaps up I til now being able to live without having to constantly 'out' themselves. When a male-identifying person comes in to your women-only space, you are no further forward in terms of being able to challenge (if that's what you want to do).
If the aim of law and legislation is to minimise harm, then the trans community needs protecting (and given the vitriol here we can see why). Anyone with trans friends will be aware of a litany of assaults, abuse and discrimination that trans people experience. Up until now trans folks have tended to use spaces where they 'pass' best where they can for very obvious reasons.
There is very little evidence that trans women (biological men) as a whole are disproportionately dangerous to women. Of course some are (as are other non-trans men and women). Whereas there is abundant evidence that non-trans women and men are abusive to trans folks, particularly trans women.
It is not a competition!!. Women's rights to safety are not in opposition to trans folks rights to safety. The triumphalism and hatred displayed in some of these mumsnet posts today seem to me to completely miss a human response, and fly in the face of evidence too.
Whether someone accepts or not the court's conclusion (that sex means biological sex) the priority now must be minimising harm for all, which requires much less demonising and rabble rousing.
Of course I expect that for me right now too....