Where are you opening this ? <| sep |> Here is the link to the discussion over there . <| sep |> Don ' t let umRNA 28 hear that , they ' re a Britbong . <| sep |> you should read the selfish gene by richard dawkins . It explains very well how various behaviors in a social group need to reach a certain equilibrium . It is not the behavior of EVERYONE , but a certain percentage . such as your serial killer example . which will be selected for . too much altruism is easily sabotaged and destroyed by a single individual who basically loses the altruism gene . too little altruism results in mutually assured destruction . There is a happy medium where the evil can fight evil and in a sense that which does not kill us makes us stronger . So no , it would not benefit survival for everyone to be racist , and this is not something innate to us . What is innate is a certain percentage of the population to be racist , and the adversarial relationship between racists and nonracists help the community to ultimately welcome diversity that benefits them while defending themselves from destructive forms of diversity .