"If nature does not wish that weaker individuals should mate with the stronger, she wishes even less that a superior race should intermingle with an inferior one; because in sun cases all her efforts, throughout hundreds of thousands of years, to establish an evolutionary higher stage of being, may thus be rendered futile.
But such a preservation goes hand-in-hand with the inexorable law that it is the strongest and the best who must triumph and that they have the right to endure. He who would live must fight. He who does not fight in this world, where permanent struggle is the law of life, has not the right to exist." (Adoph Hitler, Mein Kamph, 4th printing {London: Hurst & Blackett, 1939}, pp. 230-240, 242)
A central goal of Hitler and his government was the development and implementation of eugenics to produce a superior race, often called Aryan, Teutonic or Nordic race. The goal w as to prevent "inferior races" from mixing with those judged superior in order to prevent contamination of the human gene pool. In formulating these racial ideas Hitler relied heavily on Darwinism, especially the elaboration by Darwins's German disciples such as Fritz Lenz and Ernst Haeckel. The superior race belief was based on the theory of racial inequality within each species, a major presupposition and requirement of Darwins original "survival of the fittest" theory. This culminated in what the Germans call the Final Solution to the Jews and Poles, who were judged inferior. (Jerry Bergman, "Hitler and the Nazi Darwinian Worldview", pp. 37-38
Then, he relied on a warped understanding of evolution. (Surprise! Hitler's views were warped, who knew?). See my post below yours. Evolution actually implies that those species with greater genetic diversity are more likely to survive long-term than those lacking genetic diversity. Hitler certainly was not in favor of increasing the diversity of the human gene pool, was he?
Indeed.