I was responding to your post: Yes, and the researchers aren't even considering the possibility that these women sound incompetent when talking to men, because they actually, comparatively, are. The researchers were investigating how much of the perceived competence difference was real and how much was a difference in perception only. So they controlled for actual differences, and found a large difference in the way equally-competent men and women are perceived.
But aside from that, wouldn't you like to get the women are are actually good at math and science to get into STEM fields, even if they are a minority? I think that's a question we can actually do something about, even if we can't change how good women are at science. http://www.macleans.ca/general/girls-good-at-math-half-as-li... I'd like to encourage good female programmers, however many of them there are, to go into programming jobs.
You answered a question about comparative scientist competence (which is highly objective, because it's judged on the basis of peer review of published work) with stats about elementary school grades handed out by teachers (which is highly subjective, because it's a virtually unchecked power, almost never judged by any outside auditor), not to mention the difference in age, task, environment -- basically every single criterion is different. It's not a question of liking anything. You're simply trying to move goalposts.
Judging by the various forms of intellectual dishonesty you've attempted thus far, I would gladly do my utmost to prevent anyone the least bit like you from finding employment anywhere near me for as long as I live.