[smashthepants]

The problems were created by giving preferential treatment based on race, but the solution is to ignore race?

No one is advocating wishing anything away. If you want to focus specifically on equality of opportunity you can't do so without recognizing that race directly affects which opportunities are available to whom. Any solution that ignores that is just more of the same. And doing more of the same only extends the timeline of "when" that the original comment took issue with.