I don't really care what the idealized DEI policy is. I care about what companies actually put into practice. If companies submitted test resumes that were similar besides details identifying race and gender, and a disparity was noticed then I would be totally supportive of rectifying that bias. I'd similarly be totally supportive of anonymizing resumes, turning videos off in Zoom interviews and masking voices. But that's the total opposite of every DEI policy I've encountered. The problem is that a non-discriminatory recruiting system does produce an equitable outcome, but it's equitable with respect to the workforce not the general population. And if other companies in the field are engaging in hiring preferences, non-discriminatory recruitment will actually yield less because the diverse talent is siphoned off to those less scrupulous companies.
In the real world, I've consistently seen DEI policies that call for X% URM engineers and Y% women engineers. And these figures for X and Y were substantially higher than the percentage of URM and women in the software development workforce (at Dropbox the gender target was 33% women in spring of 2019). This led recruiters to be much more selective when hiring white and especially Asian men. It didn't eliminate bias, it incentivized bias for the desirable races and genders. We didn't expand our candidate pools, we contracted them. We stopped interviewing non-URM men from boot camps any only advanced URM and women from bootcamps. We did the same with non-engineering majors. Women and URM men who majored in a non-tech field but practiced programming on the side were interviewed, men in the same situation were not.
Pretty much every attempt to make a company more "equitable" that I've witnessed has followed the same arc. Leadership assures people this isn't discrimination, it's just broadening candidate pools. They send recruiters to Grace Hopper, HBUs, etc. But this doesn't yield any change, because there's no untapped pool of women and URM engineers. Then the company sets quotas (under euphemisms like "inclusion targets", "diversity goals", etc.) and turns a blind eye to discrimination.
The whole reason why we use euphemisms like "DEI" is because nobody wants to discuss these phenomenons in concrete terms. We use euphemisms like "diverse" because we'd cringe if we just explained our policies in plain English terms (and it'd land us in lawsuits). If DEI really was about anonymizing applications, trying to identify and eliminate biases, and preventing discrimination then I'd be all for it. But that's to polar opposite of what DEI really is.