Atheism and morality

[simplexity]

you don't seem to have grasped my argument at all. Of course we can and do have concepts of things that do not exist.
We have a concept of morality. My point is that there would only be something answering to that concept if a god and an afterlife exists.

'If a god and an afterlife exists'. There you go. Now all you have to do is get rid of this silly preconception. I don't see why you need a god answering the concept, for something to be answering the concept. Many other things can 'answer' a concept.