I'm white and I agree a problem exists, although I'm not American. I'm also basically on the "pro-Damore" side in this thread, although I don't necessarily agree with everything he wrote in the document. You seem to take this as an indication that I'm sexist or denying sexism exists, and I think a big part of the problem is exactly this kind of "you either agree with me or you're a sexist pig" approach.
A person can be pro-equality and even for encouraging more women to go into tech, without agreeing that all gender differences are caused by social conditioning or that affirmative action is the proper way to fix it.