Slaveholders knew Black capabilities firsthand yet ignored evidence contradicting racist ideas.

Evidence

But these remarkable exhibits of remarkable Black adults and children did little to sway the proslavery mind. Enslavers probably knew more than anyone about Black capabilities in freedom. But they only cared about Black capabilities to make them money. — Ibram X. Kendi, Stamped from the Beginning, 319

Categorization

• XREF: Directly supports the reader’s core goal: evidences Kendi’s claim that self-interest, not ignorance, drives racist ideas — enslapers had maximum firsthand knowledge yet were unmoved.