*sigh* This isn't what was said, at all. The author quite clearly states in the Background section and even includes a diagram for the literacy challenged (which is seems Google must employ a surprising amount of given how many people are misrepresenting what was said) that there are significant overlaps in the traits of the male and female populations that make for good tech workers, and that he is talking about trends across the entire population.
"Many of these differences are small and there’s significant overlap between men and women, so you can’t say anything about an individual given these population level distributions."
All he's saying is that across the female population less women are inclined towards tech and so you wind up with less women in tech jobs.
In the same way that across the male population less men are inclined towards nursing or teaching elementary school and so you have fewer male nurses or elementary school teachers. This doesn't say that women can't be good tech employees just as I'm not saying that men can't be good nurses or elementary school teachers.
He posits that this may be due to biological differences and as such throwing money into initiatives to try to increase the amount of women in tech may be better suited elsewhere in ways that don't target a specific , those who are already inclined towards STEM are in STEM. He even touches slightly on the possible cultural contributions to the gap in the section "Non-discriminatory ways to reduce the gender gap". He however sees it more as the male gender role forcing men into the tech environment, viewing Feminism as having freed women from the shackles of a female gender role.
I disagree with him here slightly, as it seems to me that in high school a male nerd was a far more sociably acceptable thing than a female one. I'm not female however so I can't say for certain(surely we have some women nerds on this board that could weigh in on this?)
Again, not what was said. That's a dishonest tech blogger putting words in his mouth to generate the outrage bucks. There's a link to the memo in the first post, it's quick read, take the first step towards thinking for yourself instead of parroting what the media wants you to think and click that link.