The north end of a magnet is attracted to the south end of another magnet. Do people follow the Law of Magnetism where differences attract? Generally, no. Individuals are drawn to individuals who are broadly similar meaning people are attracted by others of the same race. …..Generally.
That’s neither good nor bad. It’s just the way this works out. Recent study has revealed startling new evidence from the mapping of the genome that has resulted in an explosive new account of the genetic basis of race. Genetic. DNA. Race it has been revealed is baked into the DNA of people.  
 But Liberals have concocted the idea that race related choices are evil. They believe and practice anti-Racism which is supposed to make people of different races live together irregardless of their preference. 

Inconveniently, as Nicholas Wade argues in his book: “A Troublesome Inheritance”, the consensus view cannot be right. And in fact, we know that populations have changed in the past few thousand years—to be lactose tolerant, for example, and to survive at high altitudes. Race is not a bright-line distinction; by definition it means that the more human populations are kept apart, the more they evolve their own distinct traits under the selective pressure known as Darwinian evolution. For many thousands of years, most human populations stayed where they were and grew distinct, not just in outward appearance but in deeper senses as well.

Wade, the longtime journalist covering genetic advances for The New York Times, draws widely on the work of scientists who have made crucial breakthroughs in establishing the reality of recent human evolution. The most provocative claims in this book involve the genetic basis of human social habits. What we might call middle-class social traits—thrift, docility, nonviolence—have been slowly but surely inculcated genetically within agrarian societies, Wade argues. These “values” obviously had a strong cultural component, but Wade points to evidence that agrarian societies evolved away from hunter-gatherer societies in some crucial respects. Also controversial are his findings regarding the genetic basis of traits we associate with intelligence, such as literacy and numeracy, in certain ethnic populations, including the Chinese and Ashkenazi Jews.

Wade believes deeply in the fundamental equality of all human peoples. He also believes that science is best served by pursuing the truth without fear, and if his mission to arrive at a coherent summa of what the new genetic science does and does not tell us about race and human history leads straight into a minefield, then so be it. This will not be the last word on the subject, but it will begin a powerful and overdue conversation.

Wade identifies five major races: Africans, i.e., sub-Saharan Africans; Caucasians, i.e., the people of Europe, the Middle East, and India; East Asians, i.e., the people of China, Japan, and Korea; American Indians; and Australian aborigines, i.e., original people of Australia, New Guinea, and Tasmania. He acknowledges that Middle Easterners and Indians may be considered races independent of Caucasians, whom he calls Europeans. Many of his discussion treats these three as distinct races

Some of the ways people interact make racism irrelevant. Other ways make it almost a crime.
People are far more complicated than magnets. Magnets have only one way to attract and one way to repel. People have many ways they can be attracted by differences and many ways they can be put off by differences.

It will be quite a long time until there is one race on the earth. Until then we need to do the best we can to figure out issue by issue how to control our choices. People are more complicated than magnets so it’s wrong to think opposites should attract when many times they don’t. Quite often it’s not racist to be repelled by opposites. Neither is it anti-racist to force people into moral choices they don’t like.

What about people like Vanessa Williams who identifies herself as black but her DNA is 44% European? 

Where do we go from here? Some questions do not have clear answers. Race, however is not a mystery. Race is identifiable.