How was Darwin’s work on the evolution of species exploited by proponents of the industrial age?

Consider the so-called Cambrian period. Here fossils of the major groups of invertebrates first appear together in a spectacular “explosion” of living things. If these vastly differing groups all exploded into life at the one time, how could they possibly have evolved from one another? Darwin himself frankly admitted: “If numerous species . . . have really started into life at once, the fact would be fatal to the theory of evolution.” Fatal indeed!—1 Corinthians 3:19, 20.
Darwin believed—and wrote in a letter to a friend—that in the future “an endless number of the lower races will have been eliminated by the higher civilized races throughout the world.” He used as a precedent the European conquest of others and chalked this up to “the struggle for existence.”
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