Although I agree that genetic diversity is a Good Thing I do not think that this goes against eugenics. There are many genetic mutations that are just bad, the most obvious is Down's, but there are of course many others. Downs are of course sterile but many others aren't.

In the UK we have reached a point where the failures have more opportunity to breed than those at the top. If you are successful you have one or 2 if any children as you pay for their upkeep. If you are unemployed then you start having children up to 15 or more years early and keep banging them out. Any type of control on this would be in breach of civil liberties and is of course not something we can address...