@stepic you keep repeating this "17 years and one trans athlete" thing and have not once acknowledged the major rule change in 2015 (that were in effect for the Rio Olympics but not really in time to affect qualification and selection).
The initial guidelines from 2004 stated that trans-athletes had to have legal recognition of their gender, have undergone sex reassignment surgery (including a gonadectomy), and have undergone hormone therapy for a recommended time of at least two years.
The latest changes removed the need for any surgery and legal recognition of gender, instead allowing trans-athletes to compete solely on their own gender declaration, with the hormone requirement also changed to a single year of testosterone suppression.
This Olympic cycle is essentially the first where these new rules are in effect, so I'm not sure how you've concluded that we have 17 years of evidence on this. We're basically at zero.
To be so righteously indignant about something to the point that you've now called people transphobes for having some very justifiable concerns about the future of women's sports is just absurd.