As far as I can see, all opponents' posts each commit about two logical fallacies in their arguments.
I support eugenics 100%
Now first of all, let me clear any judgements that statement has instantly led you to form about me. I am one of those cheese-eating woolly liberal types. I firmly believe in Mill's Harm Principle, ie anyone is allowed to do anything as long as it does not harm others. This is liberty in as true a formulation as possible without sacrificing justice.
Secondly, if you want this study to be of any use quantitatively or qualitatively, you seriously need to rephrase your definition of eugenics. "Controlled breeding" has far too negative a connotation of what eugenics can be; it instantly conjures up images of Nazi eugenics. It is worth pointing out that eugenics was a popular school of thought before Hitler authorized forced sterilization and 'euthanasia'.
@Th3Ch33s3Cak3 and @Jabberwock King - bad company fallacy & association fallacy; just because the Nazis performed a bad kind of eugenics does not mean that all eugenics is bad. As Hardcore_gamer points out, Hitler himself was a staunch opponent of smoking (and cruelty to animals for that matter)
@Gunner 51 and @Rawne1980 - slippery slope argument; just because it may lead to a bad consequence doesn't mean either that it will or that the benefits of the original are automatically nullified (and this doesn't mean that I support eugenics no matter the cost, either)
@JoJoDeathunter, @SckizoBoy and @capper42 - just generally flawed logic. As a biologist, do you not think that man has been doing "something better than nature" for about 2,000 years now? As the only creature on Earth to be fortunate enough with sentient intelligence (and thanks evolution for that!) we've been making our lives better with each technological and medical breakthrough that is made. If you're right and we should not tamper in 'nature's business', why do you think it's alright to use vaccinations and anti-bacterial medication? For example, if you could choose between selective gene therapy and medication to eradicate Alzheimer's Disease, why *not* prevent all future occurrences rather than use a firefighter approach of removing it whenever you see it?
Notice my proposal there - selective gene therapy; THAT is eugenics. Not the forced sterilization of all those deemed to have a flaw. Not the intentional killing of those people either. Simply the insurance that such flaws will not reoccur again.
@Hagi - again slippery slope, as above. Let people who do not/can not take advantage of what modern science has to offer, the point is that as long as people *can*, the gene pool becomes stronger. On a personal side, these parents have been blessed with the assurance that their children will not suffer from whatever maladies science can prevent at the time. What's wrong with that?
@TheIronRuler, as for your Gattaca argument (great film btw

), that does not make eugenics bad, merely unequal. Even if gene therapy was incredibly expensive so that one in ten thousand people could afford it, why not let them do it? Are you so jealous of their opportunities that all should be prevented from doing it? And let's not malign me again; I'm a working-class and hardly in the position to take up such an offer (although I would point out that here in the UK couples are allowed up to three cycles of IV fertilization free on the NHS - a similar system is surely within reach once cost-effectiveness has been obtained)
Sorry for the essay, I just happened to click on this post and felt that eugenics was being horribly misrepresented in what can only be described as the intellectual equivalent of a witch-hunt
