Renée Richards was a trans Tennis plays (1970's), that didn't always win. Some trans activists claim, "see", her failure is proof that despite the M2F's advantages, they won't always win. Which is fine, but that does's change that they have an unfair advantage. An attempted rapist isn't suddenly a moral person just because they didn't succeed. The problem is that they have an unfair advantage compared to the other competitors, but they still have to work very hard and be very good.