What few people seemed to realize or perhaps dared admit was that the thick walls of the caste system kept everyone in prison. The rules that defined… - Isabel Wilkerson

In the American caste system, the signal of rank is what we call race, the division of humans

That summer and into the fall and in the ensuing years to come, amid talk of Muslim bans, nasty women, border walls, and shithole nations, it was common to hear in certain circles the disbelieving cries, “This is not America,” or “I don’t recognize my country,” or “This is not who we are.” Except that this was and is our country and this was and is who we are, whether we have known or recognized it or not.

Two decades ago, analysis of the human genome established that all human beings are 99.9 percent the same. “Race is a social concept, not a scientific one,” said J. Craig Venter, the geneticist who ran Celera Genomics when the mapping was completed in 2000. “We all evolved in the last 100,000 years from the small number of tribes that migrated out of Africa and colonized the world.” Which means that an entire racial caste system, the catalyst of hatreds and civil war, was built on what the anthropologist Ashley Montagu called “an arbitrary and superficial selection of traits,” derived from a few of the thousands of genes that make up a human being. “The idea of race,” Montagu wrote, “was, in fact, the deliberate creation of an exploiting class seeking to maintain and defend its privileges against what was profitably regarded as an inferior caste.