@iconoclast You only have to think about it for a couple seconds to realize how true it is too - look at who wins essentially all international women's sport competitions. The US dominates almost everything, and if they're not winning, they're still on the podium. Does the US just have better females than anywhere else?
No - it's just one of the only countries in the world that doesn't completely discourage women from participating in athletics from a young age, and/or doesn't exclusively funnel girls into more "feminine" sports like gymnastics, figure skating, and dance. And the US
still has somewhat of a cultural bias of women participating in traditionally masculine sports like strength-based activities.
Part of the dominance comes from the fact that the US dedicates far more resources to a professionalized selection, coaching, and training infrastructure than most countries do, but that's only a small part of the difference IMO. If women's participation in sports was encouraged globally on the level that the US does, parity in international competition would undoubtedly improve.