To be clear, in my second paragraph, I'm referring to true damage to math skills. There's a world of difference between "woman are being discriminated against and it's destroying their ability to learn math" and "women are being discriminated against and they don't like to show off the skills they have". In particular, and this is important, the solutions are different. Although also the severity is different, too, which is also important in deciding what to do about it.

One of the problems I have with this whole debate is that people are so quick to jump down your throat if you don't simply parrot the party line, even when you mostly agree with it, that it isn't even permitted to deeply examine the problem. Nevertheless, step one, as in all engineering, is to figure out the problem. If you insist on short-circuiting that step, your solutions won't work. That doesn't change magically because it's a hot-potato topic.