Yes each individual is unique. But when you pick the top athletes in the world, you're not picking a random subset of the population. You're picking the most extreme examples from the edge of the bell curve.

At these levels, even a 3% difference in ability can mean the difference between 1st place and 600th. And the differences between men and women are much more pronounced than 3%.

Just do some research and look at the differences. Serena Williams, best woman tennis player, got absolutely dominated by 203rd male tennis player.

American women's soccer team got dominated by a high school boy's team. It just isn't there. I know people want to believe all sexes and genders are equal and they should be. But just because they are equal under the law or should receive equal treatment doesn't mean they are the same