Man Named 'Tiffany' Is Dominating Women's Pro Volleyball in Brazil

[John V]

As long as their testosterone levels are below the normal male range, then what's the problem?

First, that's not what I asked. If a man declares that he's a woman, I presume that by your standards, she is at that moment. Should she be allowed to compete with women at that point? If not, why not?

Second, why would you define female as not male? Why not say that a trans woman must be within the female range, rather than outside the male range?