That’s a problem that needs to be fixed at the high school level (or earlier).
What ability does a private university like Harvard have to affect the equity of primary or secondary education across the entire country? This sounds good, but who is doing the fixing? The same people who are stripping away the ability for colleges and universities to address inequity by considering it in their admissions policies are also strip mining public education. Maybe AA was a bandaid but ripping off the bandaid because it would be better to fix the injury, but having no ability or will to fix the injury, just means that now you’re bleeding all over the place.