Here is the "commentators" blog:
https://ukhumanrightsblog.com/2023/12/05/lets-talk-about-sex-case-note-on-for-women-scotland-limited-v-the-scottish-ministers-2023-csih-37/
Firstly, the impact of For Women Scotland 2 in England and Wales. It is not binding, but persuasive. I would suggest that it would be hard to imagine, say, an employment tribunal declining to follow it. The case is, of course, binding on all inferior courts in Scotland.
Secondly, for both trans-rights campaigners and gender-critical campaigners such as FWS, the judgment is something of a mixed bag. On the one hand, the judgment confirms that, for the purpose of the EqA at least, sex is not immutable. The sex of a trans-man with a GRC is male, and the sex of a trans-woman with a GRC is female. On the other hand, having a GRC becomes the key determiner. As such, under the EqA, the sex of a trans-person without a GRC is their natal sex. Obtaining a GRC is not straightforward and requires, amongst other things, a medically evidenced diagnosis of gender dysphoria.
5000 people in the UK have a GRC. You are exceptionally unlikely to meet them in a single sex space.
In the meantime, if you are unlucky enough to be raped (1 in 6 women will be in their lifetime) you have no chance of getting justice.
I know where I want the opposition to focus.