At this point, I doubt we'll make much progress toward resolving disparities in Black achievement without fostering equal investment in education in those communities. So long as Black students spend on average about half and one third as much time on homework as compared to white and Asian students respectively [1] the gaps academic performance aren't going anywhere. We can try to paper these over with more permissive expectations for admitting underrepresented students, but that has knock on effects: chiefly students admitted on account of affirmative action are less likely to major in STEM and more likely to drop out [2]. In this regard, affirmative action exacerbates underrepresentation in employment sectors as students that want to major in STEM are mismatched and change majors to graduate.
I'm honestly struggling to figure out how you think anyone who disapproves of racial discrimination is ignorant of slavery and the struggle for civil rights. Is your worldview really so narrow that you assume anyone who disapproves of racial discrimination is ignorant of slavery and anti-Black discrimination?
1. https://www.brookings.edu/blog/brown-center-chalkboard/2017/...