here is part two it's sort of long, but shows other sources other than darwin, like the original followers of darwinism, (his right hand man), and how they viewed racism via natural selection:
"Only the fittest should survive."
"He [Haeckel] convinced masses of his countrymen they must accept their evolutionary destiny as a ‘master race’ and ‘outcompete’ inferior peoples, since it was right and natural that only the ‘fittest’ should survive. His version of Darwinism was incorporated in Adolf Hitler’s
Mein Kampf (1925), which means ‘My Struggle,’ taken from Haeckel’s German translation of Darwin’s phrase, ‘the struggle for existence.’ "—*
R. Milner, Encyclopedia of Evolution (1990), p. 207 [also 312-313].
"In 1918, Darwin’s apostle Ernst Haeckel became a member of the
Thule Gesellschaft, a secret, radically right-wing organization that played a key role in the establishment of the Nazi movement. Rudolf Hess and Hitler attended the meeting as guests (Phelps, 1963)."—
Ian Taylor, In the Minds of Men (1987), p. 488.
"Friedrich Engels, one of the founders of Communism, wrote to Karl Marx, December 12, 1859, ‘Darwin, whom I am just now reading, is splendid.’ "—*
C. Zirkle, Evolution, Marxian Biology, and the Social Scene (1959), p. 85.
"Karl Marx wrote to Friedrich Engels, December 19, 1860, ‘Although it is developed in the crude English style, this is the book which contains the basis in natural history for our views.’ "—*
C. Zirkle, Evolution, Marxian Biology, and the Social Scene (1959), p. 88.
"Ernst Haeckel (1834-1919) was an avid, self-appointed spokesman for Darwinism in Germany . . Haeckel professed a mystical belief in the forces of nature and a literal transfer of the laws of biology to the social realm. The movement he founded in Germany was proto-Nazi in character; romantic Volkism and the
Monist League (established 1906), along with evolution and science, laid the ideological foundations of [German] National Socialism.
" . . English Darwinism interlinked two main themes, natural selection and the struggle for existence. Social
Darwinism is an attempt to explain human society in terms of evolution, but Haeckel’s [proto-Nazi] interpretation was quite different from that of capitalist Herbert Spencer or of communist Marx. For him a major component was the ethic of inherent struggle between higher and lower cultures,—between races of men."—*
Michael Pitman, Adam and Evolution (1984), p. 48.
"Again, Marx wrote to Engels, January 16, 1861, ‘Darwin’s book is very important and serves me as a basis in natural selection for the class struggle in history . . not only is a death blow dealt here for the first time to ‘teleology’ in the natural sciences but their rational meaning is emphatically explained.’ "—*
C. Zirkle, Evolution, Marxian Biology, and the Social Scene (1959), p. 88.
"In turn, biological evolutionism exerted ever-widening influences on the natural and social sciences, and its repercussions were neither sound or commendable. Suffice it to mention the so-called
Social Darwinism, which often sought to justify the inhumanity of man to man, and the biological racism which furnished a fraudulent scientific sanction for the atrocities committed in Hitler’s Germany and elsewhere."—*
Theodosius Dobzhansky, "Evolution at Work," Science, Vol. 127, May 9, 1958, p. 1091.
"Along with his social Darwinist followers, [Haeckel] set about to demonstrate the ‘aristocratic’ and nondemocratic aspect of the laws of nature . . Up to his death in 1919, Haeckel contributed to that special variety of German thought which served as the seed-bed for National Socialism. He became one of Germany’s main ideologists for racism, nationalism, and imperialism."—*
Daniel Gasman, Scientific Origins of National Socialism: Social Darwinism in Ernst Haeckel and the German Monist League (1971), p. xvi.
"The first point is that selfishness and violence are inherent in us, inherited from our remotest animal ancestors . . Violence is, then, natural to man, a product of evolution."—*
P.J. Darlington, Evolution for Naturalists (1980), pp. 243-244.
"Darwinism helped to further brutalize mankind through providing scientific sanction for bloodthirsty and selfish desires."—*
Robert T. Clark and James D. Bales, Why Scientists Accept Evolution (1966), p. 64.
"The law of evolution, as formulated by Darwin, provides an explanation of war between nations, the only reasonable explanation known to us."—*
Arthur Keith, Evolution and Ethics (1947), p. 149.
"Darwinism consistently applied would measure goodness in terms of survival value. This is the law of the jungle where ‘might is right’ and the fittest survive. Whether cunning or cruelty, cowardice or deceit, whatever will enable the individual to survive is good and right for that individual or that society."—
H. Enoch, Evolution or Creation (1968), p. 145.
"The idea that evolution is a history of competitive strife fits well with his [Marx’s] ideology of ‘class struggle.’ "—*
R. Milner, Encyclopedia of Evolution (1990), p. 412.
" ‘This is the book,’ he [Marx] wrote to his disciple Engles in 1866, ‘which contains the basis in natural history for our view,’ and he would gladly have dedicated his own major work,
Das Kapital, to the author of
The Origin of Species if Darwin had let him.
"At Marx’s funeral Engels declaimed that, as Darwin had discovered the law of organic evolution in natural history, so Marx had discovered the law of evolution in human history. With its denigration of non-material aspects of human life, and its mission to uproot tradition and destroy creationist concepts in men’s minds, communism remains one of Darwin’s strongest adherents . . After 1949 when the communists took control of China, the first new text introduced to all schools was neither Marxist nor Leninist, but Darwinian."—*
Michael Pitman, Adam and Evolution (1984), p. 24.
"Like Darwin, Marx thought he had discovered the law of development. He saw history in stages, as the Darwinists saw geological strata and successive forms of life . . But there are even finer points of comparison. In keeping with the feelings of the age, both Marx and Darwin made struggle the means of development. Again, the measure of value in Darwin is survival with reproduction—an absolute fact occurring in time and which wholly disregards the moral or ethical quality of the product. In Marx the measure of value is expended labor—an absolute fact occurring in time, which also disregards the utility of the product [and also the workman]."—*
J. Barzun, Darwin, Marx, Wagner (1958), p. 8.
(many more where that came from)
Above quotes from:
http://www.evolution-facts.org/Evolution-handbook/E-H-19.htm