One should point out that the genetic frame of reference for morals is being superseeded by memetics in our current culture right now. There was this big war on planet earth where the struggle between these two reference points (genetics vs memetics) took place, and memetics actually kind of won.
The other side, the geneticists, or IOW, the nazis, did see evolution of the genes as something to die for and to kill for, that the ultimate objective of mankind was to bring upon itself the perfect homo sapiens gene pool (which of course was based on Arian genes and artificial selection against defective and abhorrent people), and that this would bring progress and happiness.
"Memeticists", that is, christians, jews and marxists actually see men in a "supernatural way", that is, it doesn't matter if you aren't all smart and haven't the "perfect genes", you are a human being and thus you are equal to the rest of us, equalitarianism was the basis of their morality. (We are all brothers, sons of the same god) And that the genes aren't the important thing in society, but ideas and "artificialnessness", that is, the ability to create an artificial world apart from the "natural" world.
In such a sense, BabyEaters were nazis, while humans played the part of "memeticists" here. One can always make the case that, even if one accepts moral relativism and the lack of absolute references that may help us dealing with this, that the "geneticists'" case is worse than the "memeticists", that is, that the latter do produce an increase of happiness and progress, since memes evolve much faster than genes.
Superhappies are the ultimate "genememeticists", in the sense that they have their own genes evolving as if they were memes.