But that's a contradiction, no? We're saving women from other women and barring trans people also (ones we consider men) because of a perceived risk that I don't see evidence for (i.e. people choosing to compete as women on a malicious basis or with an 'innate advantage' that makes it dangerous - we've had a long time of running these sports without this sort of regulation, and it seems to be a political choice more than a reaction to evidence that women are being outcompeted by trans people). This is also assuming that having a y chromosome makes it fair for people with a y chromosome to compete against one another, but if you compare people's physiology these people who present as women often have low/no testosterone. Separating on the line of testosterone picks up a lot of female athletes (especially at the olympic level) that are not trans, and overall I just see this hurting women without evidence that it's actually a response to harm. In any case, trans people and gender non conforming women become the victims of this in the public sphere. It just seems very misguided.

High level sports consists entirely of outliers. That’s kind of the point of the olympics. This newest rule is nothing more than a misogynist rule to turn the women’s division into the “no more than statistically average” division.