I think, mibn2cweus, the evidence flies in the face of your well coifed proposition. The fact is, that man is the only animal observed to display altruism... this contradicts the self-preservation dictated by Darwin as well as giving lie to the belief that 'right and wrong are determined by what contributes... etc." If that were true, then man would still be living by the 'law of the jungle'... truly the survival of the fittest. Altruism, which is universally observed in humans and never seen (at least in undisputed cases) in other species can only be explained by the observance of 'Natural Moral Law'.
In discussions such as this, I'm always amazed at how the fact of universality is either overlooked or ignored. "Moral Normativity" is one of the basis for determining if examples of prehistoric hominids achieved the status of Homo sapiens. Art, burial modes and familial structure are all universal, and observed in humans from the earliest recognizable remains.
The noted Philosopher, Robert Adams (The Virtue of Faith) makes the cogent argument that:
1. Moral Facts exist
2. Moral Facts have the property of being objective and non-natural
3. The best explanation for there being objective and non-natural Moral Facts is theism.
4. Therefore, the existence of Moral Facts provides a good basis for believing theism is true.
Contd.