Inbreeding Quotes
Thomas Jefferson wrote a very similar idea over 50 years before Darwin did. See Quotation 643685.
The danger of racial and ethnic interbreeding was a fabricated myth. We now know that the danger can come from pure breeding and not obtaining enough genetic diversity. One reason that man has been so successful is that the species is the product of very extensive genetic diversity. For example EVERY human being on the planet had some genetic relationship to a Black African woman.
Darwin was not only favorable towards Blacks—see {621212}—but thought the political opposition to racial intermarriage and interbreeding unscientific. He believed that science could demonstrate that there was no genetic deterioration in miscegenation. Today there has been enough biracial marriage and children that it is clear that there is no difference in intelligence or other important characteristics. Despite this, the claim of racial destruction has been the claim of Nazis and other racists. See {621215}
Note that Nixon attributed Rogers views on Blacks to the fact that Roers was from New York City which Nixon viewed as a hotbed of liberals and minorities. This quotation was uncovered in 2010 when more of the Nixon White House tapes were released. Nixon tended to have the worst stereotyped view of all minority groups. The implication of the inbreeding is a high percentage of mental retardation. It was never been established that the Black slaves in America were inbred as they came from many different tribes and slave owners did not attempt to have slaves of a single or even two tribes. There was a great deal of diversity. If anything Southern Whites were in danger of inbreeding as it was the custom for many first cousins to marry. This was just another of Nixon’s hateful, racial remarks based on no foundation of fact.