"Your 4-point history is also off because it implies there was a gender neutral computer science that was then taken out of balance by socialization." Which is

"Your 4-point history is also off because it implies there was a gender neutral computer science that was then taken out of balance by socialization." Which is exactly the case. During the 60s and 70s, computing programs were far more gender balanced (still biased, but nowhere near as askew as today), in part because coming out of World War 2, women were far more likely to have been in the field, for the same reason they were included in manufacturing and other previously male-dominated professions: the men were at war. The extreme male gender bias you see in computing today is a result of a regressive trend whose seeds were sown in the 80s and 90s, corresponding with the PC revolution.