People will instinctually pick people who remind them of themselves. That's the very basis of tribalism on a biological level. Colorblindness was always a bad idea because we will never bridge that gap that racial diversity puts between us.

The only solution is an external enemy that is more different, which only works with things like constant warfare and demonetization of one specific group for the betterment of the rest. 9/11 was a good example of that in action for a brief time.

One of the failures of nearly every "progressive" idea is the denial of human nature, or the idea that we can suppress/overcome it. Colorblindness is another of those failures.