Half the top comments on this very thread decry DEI efforts while calling this wrong without the slightest hint of irony.
We're not hand-waving away discrimination as self selection. If we saw higher call back rates among male applications as compared to identical female applications then there would be a case for discrimination. When we study the call-back rates in tech companies, the results typically show no bias and sometimes show bias in favor of women [1].
What's happening is that people are alleging discrimination on account of nothing except for disparities in representation in tech. You're right: tech shouldn't be any different. Do we conclude that veterinarians must be rife with anti-male discrimination because they're 80% women? Why do we make the same arguments about tech?