In every field which was once exclusively male, but is now no longer, it’s been claimed first, that no woman can perform alongside men; second, when the first claim is disproven, that hardly any woman can; and third, when the second claim is disproven, that maybe a few women can, but a majority lack the ability or the inclination. And every single time, as the residual sexism fades, the third claim is shown to be false as well. Business, politics, medicine: it’s a familiar pattern. Now math is next on the list.
In short, if there’s a difference, it’s not the sex, it’s the sexism. Anyone who can’t acknowledge this is a bigot and a twit.