I argue that your arguments are wrong.
It looks to me as if that's because you are treating them as if they are intended to be deductive inferences when in fact they are inductive ones.
At no point have I intended to argue that (e.g.) it is impossible that the results found in this study are the result of accurate rational evaluation by the faculty in question. Only that it is very unlikely. The fact that one can construct possible worlds where their behaviour is close to optimal is of rather little relevance to that.
Google did find that academic performance is no good predictor for job performance at Google.
Among people actually hired by Google. Who (1) pretty much all have very good academic performance (see e.g. this if it's not clear why that's relevant) and (2) will typically have been better in other respects if worse academically, in order to get hired: see e.g. this for more information.
I conjecture that, ironically, if Google measure again, they'll find that GPA became a better predictor of job success when they stopped using it as an important metric for selecting candidates.
you argue as if scientific studies nearly always replicate
Not intentionally. I'm aware that they don't. None the less, scientific studies are the best we have, and it's not like there's a shortage of studies finding evidence of the sort of sex bias we're discussing.
None the less, scientific studies are the best we have
"Best we have" doesn't justify a small confidence interval. If there no good evidence available on a topic the right thing to do is to be uncertain.
it's not like there's a shortage of studies finding evidence of the sort of sex bias we're discussing
The default way to act in those situations is to form your opinions based on meta-analysis.
...I conjecture that, ironically, if Google measure again, they'll find that GPA became a better predictor of job success when they stopped using it as
I remember seeing a talk of the concept of privilege show up in the discussion thread on contrarian views.
Some discussion got started from "Feminism is a good thing. Privilege is real."
This is an article that presents some of those ideas in a way that might be approachable for LW.
http://curt-rice.com/quotas-microaggression-and-meritocracy/
One of the ideas I take out of this is that these issues can be examined as the result of unconscious cognitive bias. IE sexism isn't the result of any conscious thought, but can be the result as a failure mode where we don't rationality correctly in these social situations.
Of course a broad view of these issues exist, and many people have different ways of looking at these issues, but I think it would be good to focus on the case presented in this article rather than your other associations.