The scene is Parliament Square in London. It’s a beautiful spring Saturday and, as is now habitual on Saturdays in London, protesters have taken over the road with a parade of hate-filled banners and chants. This time, however, the crowd has not gathered to protest against Israel, which they have been doing most weeks since October 7. No, this time, three days after the UK Supreme Court issued a transformative ruling on the definition of a woman, the crowd is made up of transgender activists