It seems evident you’re not giving an informed opinion.
The Trump administration has deemed presentations of employed women and poc as part of DEI.
I find it hard to see that describing your employee diversity is discriminatory. And the law is quite settled on this not being discriminatory. Changes are being forced by executive order, many of which have been illegal under the current administration.
Diversity has repeatedly been shown to be more profitable than homogeneity, in both academic and gray literature. Besides being good for societal cohesion, fairness, stability, happiness, and moral virtue.
The best candidate is indeed best, but there are too narrow and outdated ideas on how to identify the best candidate, and humans have a bias to choose/hire for safety and similarity over actually relevant criteria, which is why we have the problem in the first place.
And I’m showing you, with sources, that you are wrong on both your points.
It can be reliably and reproducibly measured that diversity is more profitable. It’s as “always” as tylenol helps against headaches, trains for travel, google for searches, gravity for keeping you on the ground. Yes, there technically are times these don’t work, but it works more often than not, and typically there’s other factors when it doesn’t.
And similarly, yes you might not always pick the best candidate, but applying robustly provable best practices will lead you to doing it more often.
Do you go through anything else in life in this manner? That if you can’t do it perfectly, you’d rather not try? I’d wager not, as trying gets you closer to your goals, even when not meeting them immediately.