https://www.independent.co.uk/news/uk/politics/trans-supreme-court-ruling-women-dr-victoria-mccloud-b2809418.html
This will go on for years w/ multiple cases. Obviously it would be far easier for the government to simply make a small amendment to the EqA rather than let UK trans rights lag behind Turkey and Romania, but they're more interested in being diet Reform than an actual even vaguely progressive party.
Also, if the UK ever wants to get back into the EU, this is going to be a stumbling block..given what's happened with the CJEU, so thanks GCs!