The genetics professor who was instrumental in introducing the transgender policy to the NCAA:
Vilain told me that the NCAA’s rules were also aimed at inclusivity and that the governing body aims to give everyone the chance to compete. Creating rules around transgender participation, he admitted, was extremely challenging. He said that the entire concept of anatomical equality for transgender athletes was simply not feasible, and thus, it was not a stated goal of the NCAA’s rules.
“It is not about making everybody biologically equal, and I think that is a common misconception when we start talking about transgender athletes,” he said. “People want transgender [females] to be physiologically identical to [born] females, and if they’re not, it’s unfair. That is not possible.”
Also (in the context of intersex conditions):
Vilain, the UCLA geneticist, sees what he calls a "schizophrenic" conflict between the Chand ruling and the IOC guidelines on transgender female—not intersex—athletes, which was rewritten in November to allow an athlete to participate in competition as a female if her testosterone is below 10 nanomoles per liter, same as the old IAAF standard. "The guidelines are very favorable for transgender athletes, and a great advancement," says Vilain. "But the same rule was struck down for intersex athletes. It's illogical."
If only more people were honest that it's not about fairness, but inclusion. Then a discussion could be had over whether that was reasonable or not. But instead we have the gaslighting and arguments over testosterone levels to try and prove that trans women don't have an advantage.