Further, the comment that it "is little more than an intellectual construct" leads into/speaks to bell hooks' comment about the lack of institutional infrastructure of black supremacy; it has little impact beyond the confines of its believer community.  If I understand the objection raised about "documentation," this fact is readily apparent.  There is no network of black supremacist institutions capable of denying significant numbers of whites:  access to equal education, employment, housing, healthcare; capable of segregating or otherwise oppressing whites.