Defining Good And Evil
I didn't say you sounded cold I say you were " showing an incredible ignorance of evolution." Learn how to read, then go read the
Origin of Species.
Darwin talks about selective breeding right out of the gate, not on humans on animals, but it is the same principle. Actual Darwinian evolution is what is cold, and that this why people misinterpret it, like you, and tend towards a more Lamarckian spin on evolution (the idea of some type of progression).
Survival of the Fittest (aka natural selection) is the natural law which governs the selection process in the variation of species, in the case of eugenics that law would be removed. Eugenics would end natural selection in the human population. Natural selection is a selection process, so applying selective breeding removes that natural process.
Furthermore, whether or not humans are currently outside natural selection depend on if humans have escaped the Malthusian trap, which there are people on both sides of the fence on that one. Evolution is an incredibly slow process, and only time will tell if we have truly escaped Malthus' trap.
So to recap, it is not that I think you are being cold; I think that you don't know what you are talking about.