Oh and your claim that they're being filtered out by sexism doesn't qualify as handwaving?

Look, if women are being unfairly excluded from the pipeline then fight THAT. Don't blame Google or Facebook or X company for hiring the best they can. They have "diversity consultants" on their payroll for christs sake. This isn't an issue that is gonna magically be solved in a few years. Making the "pipeline" more diverse takes years of investment and education and encouragement. What I take an issue is with people blaming these companies when they're actually doing a reasonable job of trying to become more diverse. As if these companies are the ones really holding people back. and if only they could overcome their biases they'd have a perfect diversity ratio overnight.

We have voluminous statistical evidence that women are judged more harshly than men in all phases of hiring when the only differentiator is being perceived as a woman. That's not handwaving, that's decades of study. Handwaving is "for whatever (social/biological/cultural) reason".

We know there's a pipeline problem, and we are fighting that. We don't think it's going to be solved overnight either, and critically, not just by addressing the pipeline because, as numerous stories from the tech industry have made clear recently, even when qualified women make it through that anemic pipeline, they still face individual and institutional sexism. Or have you forgotten that one of Uber's recent departures left Google after an internal sexual harassment scandal that was quietly handled?

Stick to your original point.

this is in regards to Google.

" the more likely reason is that women are being filtered out of the pipeline by sexism, not some mysterious "maybe they just don't want to" handwaving."

So you're alleging that Google is judging women more harshly than men, "at all phases of hiring".

Provide a source for THAT, please.