We're miscommunicating. We both agree that hiring practices should be fair and objective as possible... what I'm saying is that is the goal itself, and a racial/ethnic/skintone/appearance-based diverse group may or may not be the outcome, but the outcome will be fair if the process is.
Diversity-based policies currently are only focused on the outcome, but the outcome is not what should be designed for. The outcome should just be what it will naturally be (whether it's "diverse" or not) and we should only control for selection and opportunity. This is what diversity-based policies do not help since you cannot work backwards from the outcome, you must start with making a fair process and just let people do what they want do beyond that.