It'll be interesting.
If the SC goes against biological sex, then we could be in the land of madness where Wes Streeting's position is right side of the public but the wrong side of the law. This is a problem because the law only works with public consent and its clear the public don't think its right that sex is nebulus.
Streeting would therefore have to act to 'save the Darling Nurses' from the clutches of Faraging. Providing he had enough support from the rest of non-numpties in Labour. If he did manage to force it through as a matter of urgency in order to see off any prospective disaster at future polls it also raises a bizare prospect.
This tribunal could find in favour of Upton and co because sex is legally nebulus at the time of his action. Even though Wes has charged into the HoC after the horse has bolted shouting 'It is I, Lord Flashheart! I have arrived', to the public and already Made Sex Biological Again, because a case can only rule on what the law was at the time of someones actions.
Thus Sandie could theorectical lose the case on the basis that sex is legally nebulus even though legally sex is biological.
Its utterly bonkers in every respect.
Especially since not even the woo woo pushers really believe that a male is a woman and demonstrate this in their language and their actions.