2. I personally don't find software dev collaborative or social in any meaningful way compared to other careers or industries.
In wealthy, western countries giving men and women the choice of what to study without having to think too much about where they'll end up in society, that's where you see the most gender imbalance.
So what happened from the late 80s to now that resulted in women gaining more freedom and therefore shifting them out of CS? And more specifically: Why has this only affected computer science? The gender equality paradox supposedly holds for the entirety of STEM and yet we've seen woman graduates in STEM steadily rise across the board except for CS. Therefore that would make CS an outlier and not the norm.
That's assuming the gender equality paradox holds true which is likely not the case considering the issues with the assertion brought up in the Wikipedia article you linked (which I hope you read).
The idea that male and female primates (including humans) have different ways to look at the world seems very sensible to me, and that would explain why "women care more about people" and "men care more about things".
Why did Computer Science of all STEM degrees face a drop in female graduates versus the others?
And if you're making the argument that 'women care more about people' and 'men care more about things' then I'm going to disagree heavily considering it doesn't relate to modern day software development. Current development is highly collaborative, constantly dealing with other people whether it's customers or members of your team. In fact, back when CS was at its peak of women obtaining CS degrees, that was when CS was more focused on things and less on people as a result of software still being a niche and local thing. That argument doesn't work considering the history of CS as a whole.
There are always exceptions, obviously.
I believe this to be missing the point. There are many women that are 100% aligned with the personality trait of an idealized engineer, no one (or at least not Damore) contest that.
Nowadays software dev is highly collaborative and social. It faced declining amounts of graduates that were women from the late-80s and onwards compared to engineering and the physical sciences which if I'm recalling correctly have steadily rose.