From Mein Kampf:
Walking about in the garden of Nature, most men have the self-conceit to think that they know everything; yet almost all are blind to one of the outstanding principles that Nature employs in her work. This principle may be called the inner isolation which characterizes each and every living species on this earth. Even a superficial glance is sufficient to show that all the innumerable forms in which the life-urge of Nature manifests itself are subject to a fundamental law–one may call it an iron law of Nature–which compels the various species to keep within the definite limits of their own life-forms when propagating and multiplying their kind.
Unlike creationists, however, I will show some honesty about the fact that Hitler was a creationist: Creationism did not lead to Hitler. Furthermore, even if it did lead to Hitler, that does not make it false. It would be a fallacious point, a red herring to argue such nonsense.