There’s too much to say on the topic, so I’ll just write in small chunks, over several days.
To correct the belief that no one is born prejudiced: the grim fact is for us moderns that evolution gave us millions of years of the unsocial tendency called kin selection, which means that evolution favored maintaining one’s own genetic family line over others’. (Remember all the kin in the white house?)
“People of different races are different. Although we are all one species and quite capable of exchanging genes, the fact remains that members of any race seem likely to share more genes with each other than with individuals of a different race. Physical resemblance almost certainly has some correlation with genetic resemblance, and accordingly, we can expect the principles of kin-selection altruism to operate on this fact.” (David Barash, The Whisperings Within, 1979 p. 153).
“…we’ve got to be carefully taught not to hate others who are different from ourselves, because it may be our biological predisposition to do so…If evolution does incline us to a degree of racial bigotry, that certainly does not mean that such inclinations are justified. What may have been adaptive under the conditions of our early evolution , when groups rarely met and were likely to be strongly competing when they did, is today not only dangerous and stupid and socially reprehensible but woefully maladaptive…We must demand that our cultural institutions, such as education and child rearing, make sure that we are “carefully taught” to love one another. Because, but true, we seem unlikely to do so by ourselves.” (Ibid 154, 155).
P.S. A post has appeared on my website several times showing the supposed enlarged penises of black natives. I wonder if its purpose is to feed competitiveness between men of different races.
Next: The Malleability of Humans’ Attitudes toward outsiders.