>>>> This also bans cis women with genetic anomalies. What are those? fwiw - I don't think they should be included in the ban. Genetic advantage people in their natural gender is how sports works. I'm 5'7" - Lebron definitely has a genetic advantage over me. Banning him from basketball isn't doing anyone favors.

Santhi Soundarajan (1) shows exactly how this ends up catching cis women who were raised as women from birth. Which is why it's a bad idea to draw strict lines.

Edited to add: Based on http://linuxmafia.com/faq/Essays/marriage.html I just discovered another case, that of Polish sprinter Ewa Kłobukowska who was banned from sports in 1967 and stripped of her medals for failing a sex test even though she gave birth to a child a year later. For the 1996 games 8 women failed their sex tests, but 7 of them had AIS and one had 5-alpha-steroid reductase deficiency. All of them were reinstated, and that's when the Olympics ended their previous iteration of genetic testing female athletes.

This idea has a long history, and it's a long history of being wrong. I'm not expecting any better out of it this time.

1: https://en.wikipedia.org/wiki/Santhi_Soundarajan The first female Tamil athlete to win a medal at the Asia games (in 2006), then had her silver medal stripped from her because she had Androgen Insensitivity Syndrome- so she's a XY who never developed male genitals because her body just ignored the chemical signals, as happens to something like 1 in every 40,000 births. She tried to commit suicide by drinking rat poison after she came home in disgrace.

http://linuxmafia.com/faq/Essays/marriage.html discusses some of the genetic anomalies that are possible and coincidentally how they've been handled by the IOC.