Also I don't understand how someone is blamed if they have no interest and you turn around and blame it on men that allegedly discriminate. It is very unlikely that discrimination is the issue if there wasn't to many female computer scientists in the first place. On the contrary, scare stories about "tech bros" probably scare away more people overall. Women and men for that matter.
The book is about Silicon Valley that draws in all kinds of crowds but the usual developer is mostly introverted and polite. It is not all stereotypes but there is a difference between most programmers and most salesmen.
I reject the analysis that there are systemic issues, there is no evidence at all. This has become a religion of some sort.