... and while we are here, the Supreme Court ruling is a nonsense. I went to the bother of reading 88 pages of legalese and found a few things in there.
First off, they didn't let any trans groups present evidence, but had representations from 2 anti-trans groups, one that has only exisited a year, has no discernible funding stream but plenty of staff, and was presented as a Human Rights groups when all it does is argue against transpeople. The second is from 2030 and is a business not a charity, and was called a women's rights group, when all it has ever done is agrue against transpeople. Amnesty International did get to speak for the trans people, but is barely mentioned in the ruling.
The ruling sweeps aside the very clear and simply based judgement from the Scottish Courts (ruling on Scottish law in Scotland) with little reference to it.
The Gender Recognistion Act 2004 (because we have had legal trans people since then but strangely only seems to have been called a problem in the last 4-5 years) says transpeople can change birthcertificate and passport legally, so are legally in their new gender. The Equalities Act, which they were arguing about, came along on 2010, 6 years later. the EA at no point states that it is changing anything about the GRA, nor has any subsequent law. So the GRA still stands, trans people can still legally change their gender. However, the Supreme Court judgement, somehow manages to say that they think the EA meant "biological women" and not include transwomen, even though it doesn't say that anywhere.... and so you don't have to apply the EA to transpeople.
So effectively, transpeople are women, and also are not. You can't discriminated against them, except you can.
No-one had given any viable definition of "biological woman" (and you can't because nature never works in absolutes. There are 400-500 babies born in the UK every year where it's not obvious at birth, and more people with chromosonal differences make it less clear also, most don't even realise it)
Once you try and define "biological man" too, then you leave out all the people who don't fit in your categories and the argument that there's only two caterogies falls apart again.
The judgement also seeks, with no evidence presented at all, to define what a lesbian is, saying that to be a lesbian you would only be attracted to bio women (again, no definition so how would they know) which means if you are a women that fancies a full post op transwomen you have to hand in your lesbian card presumably. It calls the idea of a transwoman at a lesbian group "chilling"
Non-binary and intersex people are just ignored, as usual. Their status is now totally unclear.
Long post, but the judgement handed down will cause more problems than it will solve.... and the problems it was trying to solve weren't really problems in the first place.
The real dangers to women and girls are as they have always been, domestic violence and unequal treatment at work in in society. Now it's the encroaching right wing misogyny, the Andrew Taits of this world, and even more "chilling" the Donald Trumps. Their attempts to limit our voice and our rights are real and present dangers.