Where you are dealing with a stock that is already defective, as stock which is defective in itself, you can only produce defective stock from it and therefore it is better to destroy the stock entirely ... we must cut off the propagation of these defectives or they will overpower us. In order to do that, I suggest, not to kill the individual or anything of the kind, but humane method... the real solution to this problem would be to confine them to farms where they would be treated kindly and mercifully, in a sort of colony where they would be prevented from reproducing.
Who are they talking about? Yep, people. What kind of people? Alcoholics. Apparently, this was the suggestion by two doctors at the 15th International Congress Against Alcoholism in Washington way back in the 1920s. I pulled this from "A man walks into a pub" by Pete Prown (although he doesn't actually cite his reference for that quote as far as I looked).
Just goes to show that any social movement that gets out of control can become very dangerous. In this case, the temperance movement in the USA which eventually led to prohabition (which I must say is better than the concentration camp idea put fourth above!)
Anyway, fun stuff.