I agree with most of your article, like the fact that even Christian morality is subjective and non-absolute, because each denomination and individual Christian has different interpretations of morality.

But whereas the supposed existence of a "god" could at least supply a theoretical absolute moral code, I think the absence of such a being does, in fact, completely preclude the existence of an "absolute" or "universal" moral code.

That doesn't mean that, without a god, there can be no "moral" code - rather, that the moral code will always be subjective. And, as I myself am an atheist, I do in fact believe that to be the case.

As I've argued in this article, I think morality is always personal and tribal:

Morality is personal and tribal, always