Jasper, no one's arguing against facts, just questioning some of your other comments, like:
Perhaps drumming is a prepositioned masculine trait. Obviously there are women with masculine traits, just as there men who have feminine traits (I have an odd ability to pick out shoes and clothes for my wife).
I'm a rather ordinary female drummer who would seemingly prove your point. Yet I still can't see the genetics in it - not with drums, not with any instrument. Music is one of the most gender neutral things you can do. Certainly at school the guys on the footy team won't think of the guys in the music room as macho.
Yet, most musicians are male, apart from maybe orchestras. I think the most important reason behind this is that women aren't encouraged to play instruments - we are supposed to sing and dance and look pretty and poised for the guys. While some men dig sweaty Amazons (fortunately), princesses are far more in demand ... and a proper lady does not
chuck a spread around a snare drum and get all boisterous and sweaty on the drum kit!
The other reason major reason is that gigging and motherhood are an especially tricky juggle.
It's possible that there may be some minor tendency differences between women and men on the way we play the drums, but I can't see how there could be an aptitude difference. It's environmental.