Why even have an interview or evaluate performance if everything is unknowable?

You use your best judgment and consider many factors. You make mistakes and get better with experience.

What we don’t want to have happen is a conflict between two opposing goals. That’s very different than disagreement about how to meet a common goal.

You've never witnessed a hiring decision that was based on an almost entirely arbitrary tie-breaker?

All I want out of DEI/Affirmative Action, apart from maybe some proactive efforts to improve diversity in the initial funnel, is for that arbitrary tie-breaker to skew towards the option that's underrepresented in the field. Does that seem unreasonable or particularly unfair to you?

dei programs in academia and corporations aren’t limited to breaking ties at the end of hiring. But I can consider the possibility in good faith.

I think giving someone who might normally not have the chance is a good tie breaker. I’m opposed to a policy that dictates that must be determined by skin color/gender/religion. If the individuals involved in the hiring felt that was the right tie breaker based on their knowledge of their community, I’m not opposed to that.

I love taking ideas to extremes, but in this case I don't advocate for that. What I mean is, diversity should be sought out and thought of as a positive, but that doesn't mean you throw out what factors you believe are relevant. I am advocating for incorporating diversity, searching for surprise, into hiring, not making it the only factor. Seeking out surprise is the fastest way to learn what you don't know so that you can use that knowledge for the future.