"I firmly believe that we who are alive and can think today-in the closing years of the 20th century-have a commitment to our species to make sure that the flicker of movement we have thus managed in space stays sufficiently kindled so that the people of the 21st century can build upon and extend the human abode from Earth to the cosmos beyond."

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But the 20th century suffered "two" ideologies that led to genocides. The other one, Marxism, had no use for race, didn't believe in genes and denied that human nature was a meaningful concept. Clearly, it's not an emphasis on genes or evolution that is dangerous. It's the desire to remake humanity by coercive means (eugenics or social engineering) and the belief that humanity advances through a struggle in which superior groups (race or classes) triumph over inferior ones.

— Steven Pinker