I might be. This sports development is kind of new.
I was just expressing my sense/suspicion that a vast majority of transwomen are aware of their biological athletic advantages in terms of muscle mass, etc compared to cis women, and would consider entering a "women's" sporting event extremely rude, and would never seriously consider doing that, but it only takes a tiny minority of jerks to render women's athletics functionally non-existent if it's not addressed in terms of policy.
Surely it is up to all these clubs and organisations to decide on what rules they want to use?