For example, someone that has medically-induced higher levels of testosterone might have a resulting advantage in aggressive sports. I don't know if that's true or not, but it's at least worth discussing it openly and honestly
Why is this worth discussing? You want to talk about how Michael Phelps has unusually long arms for his frame, which gave him a huge advantage while swimming? You want to talk about how some Ultramarthon runners have slightly different lactic acid buildup genes so their muscles don't burn as much? You want to talk about how all the players in the NBA and the WNBA are in the top 99.9 percentile for human height, giving them a huge advantage? Should all of these people be banned from sport because of their genetic advantages?
Many athletes have flat out, built in genetic advantages to other people. There is literally no way to make this "fair" without excluding people that are outside of what will be a 100% arbitrary baseline or forced gene editing, which we are barely able to do and would be wildly unethical.
It's not worth discussion, because the discussion will be asinine.