I don't think it's really that controversial to suggest that Jim Crow, sharecropping, etc, were massive injustices that intentionally limited progress for decades. In the South in public schools (in some places), they do teach us about this. We got to read The Invisible Man in high school, which was incredibly subversive when it was written.

I only say this because your post implies that the only reason someone would disagree with them is ignorance or racism, but some of us just have an appreciation for honest views about history, as I'm sure you do.