If that's all the manifesto said, this wouldn't be a story. I am a minority in tech and I certainly didn't see a lot of people like me in my Computer Science program so naturally there is under-representation in the work force, it happens.
But when you start wading into the, 'Women are biologically less well-suited for this work...' is where you get into problems. No different than arguments that used to be made against black people before de-segregation.
But women ARE biologically less suited for certain types of work. Women, for instance, are weaker than men (yes, there are exceptions. . .). Which would make them less efficient for, say, construction work.
From what I understand, the guy used scientifically valid sources to make his claim. I'm not saying that what he's saying is true, but it's sourced well enough for it should be discussed without him getting fired.
For an example more detailed/sourced argument, http://slatestarcodex.com/2017/08/07/contra-grant-on-exagger... might be a start.
This argument is interesting -- you're not saying discrimination doesn't exist, just that it's... good?
Where is the productivity gain in pushing a young girl away from STEM?
If exceptional people really have something to offer in areas where they are shunned for other reasons...
Many exceptional people won't even discover their talent if they are actively dissuaded from pursuing the education and career they have the aptitude for, all in the name of "reinforcing gender archetypes".
Tearing down the entire social structure
Tearing down a social structure that's weighted against certain genders in certain career paths sounds exactly like the right solution. Let people choose their path on their own desires and aptitude, don't choose it for them based on some historical standards of behavior.
I think the gender differences are driven by a combination of genetics, stereotypes, personal preferences, and yes, sexism, acting in a feedback loop. Genetics cause a slight natural difference; this gets summarized as a stereotype; people comparing themselves with the stereotype develop their preferences based on that; and if they don't conform, they are seen as abnormal (e.g. male kindergarten teachers get suspected of pedophilia) and are correspondingly discriminated against.
There are gender disparities all over the place. There are racial disparities all over the place.
As long as these disparities aren't enforced intentionally by sexist/racist laws, I fail to see what the problem is.
If truly there is discrimination against talented women in the tech industry, then another company would hire all of these underpaid talented women and take over the tech industry.
Why did Larry Page, Jerry Yang, Bill Gate, Zuckerburg, etc all hire mostly males in their startups? Because they wanted to overpay underqualified males because they were sexist against women?
The argument doesn't make sense. If they did that, then another startup would have taken those underpaid overqualified women and destroyed their competitors.
I don't see how this is an unreasonable argument to make. There is a dearth of male kindergarten teachers, for instance. This doesn't mean the school is being "sexist". It might just mean that certain genders tend to be attracted to certain types of professions.