When you start talking about racial quotas in schools, for example, it is a zero-sum game.   

 The woman in Texas who sued because affirmative action quotas excluded her to the benefit of ethnic minorities lost in the Supreme Court.  The ethnic student got a slot, she was white and did not.

Zero-sum.

It has been 150 years after supposed emancipation, and affirmative action apparently will be required in perpetuity-- or at least as long as even one minority person isn't 'equal'.