I ask because you seem to be describing a world in which discrimination basically can't exist due to market self-regulation - i.e., all our industries problems are basically solved, which seems to differ from your usual position.
One of the reasons I ask Tom these questions that he is one of the more rational folks on HN, particularly on other issues. It's pretty clear that he realizes he made a mistake, hence the deflection. Making a mostly rational person feel attacked is only likely inhibit their logical mind.
Is there some reason that irrational taste-based discrimination would not trigger candidate embarrassment and self-selection, but rational lawsuit-fear based discrimination would? (More precisely, rational in a world where tptacek's hypothetical perfect market self-regulation mechanism did not apply, but irrational in such a world.)
Job ads that say let's bro down and crush some code? (Generally speaking if women are a small percentage of the applicant pool, it would almost certainly be the case that the optimal hiring funnel makes you more likely to hire a given man than a given woman.)
That's the probabilistic converse of your claim. Do you endorse it? If not, why not?