The concept of wrong can only derive from rational action. As it stands in nature, survival of the fittest is neither right, nor wrong, but simply what is. To propose it as a moral code, is irrational and is not in accord with man's rational nature.
" I'm saying that it is possible to construct a moral code, the efficacy of which is supported by Darwin's observations. If you want an objective moral code, what more could you ask?"
It is not an objective moral code for humans, because it only benefits some, not all men. THe only thing objective about it, is that it can be observed in nature. It can never be called an objective moral code though. It's relative to those that propose and use it for there own purposes. In order for the code to be called absolute, it must be applicable to all and benefit all men. Else it's relative to particular men and not absolute.
What tripe.