Two possibilities...

[robvalue]

Anyone who tries to use evolution and natural selection as a basis for morality is off their rocker, be they an atheist or a theist of any sort.

I sometimes get the impression that some evolution deniers think that believing in the scientific theory of evolution is the same thing as advocating morality based on that model.

If anyone thinks that, please stop thinking it. It's an insane proposition that in no way follows from simply gathering information about the world.

"I don't like the concept of natural selection" is also not a valid objection to evolution. I don't particularly like it either, it's rather brutal. But facts don't care about your emotional reaction to them.