You can compare women doing competitive sports with men doing the same. They will both have an optimized diet and so on. Perhaps you could get some women to a

You can compare women doing competitive sports with men doing the same. They will both have an optimized diet and so on. Perhaps you could get some women to a similar level as men by giving them hormones from an early age (I don't know), but even then I think it would be a stretch to say "see, it is all cultural, we are denying those girls their hormones".