Indeed, one would have to be pretty lame to deny there is some sort of deep connection between the two, after, say, reviewing the notes on my FR homepage.
Darwinism gone mad, but Darwinism nonetheless.
I don't agree that eugenics is darwinism gone mad. What makes eugenics plausible is the Darwinian notion of heredity. That is, anything you imagine can be inherited or passed along to offspring. Darwin even thought that the 'progress of America' was a germinal trait that could be inherited and selected for. Things have not changed one whit since then, as you can see for yourself when you read evolutionists rant on about the evolution of bird-songs, mating-habits, morality, religion, preferenced for blondes, alcoholism, homosexuality... none of which can be idenitfied with anything in genetic matter. Eugenics is merely a consequence of the usual darwinian way of thinking about heredity.