Billie Jean King? How disappointing.
The US left has lost its collective mind over this.
I watched the film The Battle of the Sexes a few years ago. What struck me was how hard BJK had to train in order to beat Rigg - a man twenty years older than her who had retired from professional tennis (iirc). Yes, she beat him - but according to the film, she was out on the court training everyday while he was messing around with TV interviews and gameshows. If he had put in the same amount of training, I think he would have beaten her.
Now, obviously it was a film and had artistic licence. Maybe she didn't train so hard as portrayed.
However, the idea that a male-bodied person competes on a level playing field with a female-bodied person is just so ludicrous. Rigg was already disadvantaged by age when he played her, regardless of any discrepancies in training intensity.
Sadly, I am a pessimist. I don't think things will change until it becomes clear that a handful of mtf transitioners are dominating women's sport and several women end up seriously hurt from clashing with mtf transitioners. Obviously Tamika Brents has already had her skull broken, but apparently that's not enough.
I just think if sports orgs were going to listen to reason, they would have done so by now.