ncm: So long as I am speaking about systemic issues and you are speaking about accusation and defense of individuals, we are talking right past one another.

Try this: sexism is not a trivial matter, but with respect to systemic attitudes, individual accusations are of little account. I really, really couldn't care less anything much about Mark Shuttleworth. You can stop talking about him in specific. Each such example is only a tiny expression of the culture, and no one person or small set of people (your chosen a-few-bad-apples explanation) make a culture.