That's a fair response, but GCs regularly define trans people by the 'worst' outliers. It reminds me of Islamophobes who try to prove their point by highlighting every bad thing any muslim does as if to say 'see what they're like?'
The point is that for safeguarding women and children, those outliers are those that need to be pointed out and considered.
Also, how many females are you happy to have lose a position set aside to influence policy to be sure females are fully represented? How many females are you happy to lose a prestigious award, like the one Bunce won or Jenner won, when those awards were set up to encourage females. Females who have been subject to sexist discrimination since birth. (And I can see that discrimination still happening with my teen today).
How many females are you happy to lose representation to males who have benefited from being male for speaking positions or in panels? Like Munroe Bergdorf who told lesbians they shouldn’t protest on the sex based themes they wanted to, who then speaks as a woman at events. Or the 50:50 parliamentary panel that had two males included to encourage females to join the ranks of MPs?
How many females futures are you happy to sacrifice for those you might consider ‘outliers’, because they are all outliers in some description.