Sure but why are these people not picketing Diamond League, or local cross country races, or marathons, or any number of other race series that apply UKA regs? It seems like an organised pile-on of one specific race series.
I’m involved in a sport that rigorously applies sex categories (they finally did the right thing after years of trying all the alternatives) and we have never had a peep out of TRAs, let alone had actual races protested.
I just wonder how and why they pick their targets?