Benjamin, you seem to be conflating two dissimilar concepts: 1. What we might call racial disaffirmation — keeping out qualified black applicants.    From Wordnik.com.  [The Volokh Conspiracy » Clarence Thomas, Yale Law School, and Affirmative Action:] Reference

The third error is in the total disaffirmation of the Hondurans who deposed Zelaya.    From Wordnik.com.  [open Democracy News Analysis - Comments] Reference

But, Papa's legacy must always be subjected to affirmation and disaffirmation by all and sundry.    From Wordnik.com.  [Caribbean Net News Daily Headlines] Reference

2. denial, contradiction, disaffirmation, negation, denegation; disavowal, unsaying, repudiation, disclaimer, disclamation, gainsaying, recantation; refutation, disproof, confutation; protest, objection, contravention.    From Wordnik.com.  ["It cannot be gainsaid..."] Reference