Alabama, the last state to do so, did not throw out its law against intermarriage until the year 2000. Even then, 40 percent of the electorate in tha… - Isabel Wilkerson

As a means of assigning value to entire swaths of humankind, caste guides each of us often beyond the reaches of our awareness. It embeds into our bones an unconscious ranking of human characteristics and sets forth the rules, expectations, and stereotypes that have been used to justify brutalities against entire groups within our species. In the American caste system, the signal of rank is what we call race, the division of humans on the basis of their appearance. In America, race is the primary tool and the visible decoy, the front man, for caste.

Throughout human history, three caste systems have stood out. The tragically accelerated, chilling, and officially vanquished caste system of Nazi Germany. The lingering, millennia-long caste system of India. And the shape-shifting, unspoken, race-based caste pyramid in the United States. Each version relied on stigmatizing those deemed inferior to justify the dehumanization necessary to keep the lowest-ranked people at the bottom and to rationalize the protocols of enforcement. A caste system endures because it is often justified as divine will, originating from sacred text or the presumed laws of nature, reinforced throughout the culture and passed down through the generations.

The hierarchy of caste is not about feelings or morality. It is about power — which groups have it and which do not. It is about resources — which caste is seen as worthy of them and which are not, who gets to acquire and control them and who does not. It is about respect, authority, and assumptions of competence — who is accorded these and who is not.