My gut feeling is that Rudd is GC - perhaps not in public but in private. I hope I'm right.
I guarantee Boris couldn't give a flying f*ck about trans rights or women's rights. I imagine he's critical of trans people in a boorish, bigoted kind of way rather than being thoughtfully critical of gender ideology IYSWIM. I suspect Carrie Symons is GC from what people have said upthread. I also suspect people like Andrew Gilligan have Boris's ear.
Overall, I think Boris is a disaster for the country and is no friend of feminists but I also think it he will extinguish the GRA reform project.