"In fact, I would argue that the foundation the Holocaust was not put forth by an Austrian madman, but rather it was established in the Universities of Germany."
And what were those univesities teaching? ;)
You have to remember: in the early part of the last century, Darwin's ideas were still relatively new, and they burst on the scene with such force that academicians and politicians alike couldn't wait to wrap their heads around it.
It could be argued that Hitler was only pandering to the populace (although his views on evolution were also deeply held), but the German populace had embraced these ideas, too, because they fed on the German notion of personal and national superiority. Between-the-wars Germany had a severe superiority complex, and the writings of Darwins only reinforced this. It gave them a "scientific reason" to feel the way they did, not only about themselves, but about their Jewish neighbors.
Those universities were teaching the ideas put forth by Hegel (the Prussians suppressed his teachings) and Nietzsche, among others. While there was considerable conflict between the two, but both put the human mind as the absolute source of knowledge.
And that is the bedrock for the kind of horrors of social/political darwinism that you've done such a good job explaining.
I truly appreciate you bringing to the forefront the numerous quotes from Darwin himself regarding the application of his biological position to social and moral situations. Many evolution apoplogists prefer to act as if those things were never said. And will argue to the end that what was said was never acted upon. Truly an interesting phenomenon to observe.