You said and I quote: "I say atheism lacks a foundation for objective morality." Well, so does theism. A theist can believe in whichever god(s) he likes without having to believe that his god(s) is/are any "foundation for objective morality". Theism in itself doesn't provide any "foundation for objective morality" either.
Listing an example of what is necessarily true of a single aspect of atheism is not equivalent with defining theism. I have no idea what your talking about.
I did a theist must believe that his God produced objective morality. I said that if we have objective morality it's only possible source is God. My God or a very similar one to him if you want to be specific.
Simple.
1. Evolution and natural selection is a natural automatic objective process.
I am not sure if this is true but lets pretend it is and see if you get morality out the other end of this argument.
2. Our survival instinct is an objectively right instinct for us to have since it is the result of an objective process.
Off the rails already. What evolution justifies does not make it objectively good. It can't. What evolution justifies only makes it inherent to evolution. It does not and cannot make it morally right. You do know that a mere objective truth is not an objective good. Pluto objectively exists yet Pluto is not inherently good or evil.
3. The objective survival instinct promotes survival/life and makes us avoid death.
4. Those who help each other are objectively more likely to thrive and survive than those who murder each other. Natural selection.
5. Therefore helping behavior right murder wrong.
Nope.
1. Our greatest moral achievements are for things that are not beneficial to survival. We build museums for and give medals to those that lose their lives in the execution of an objective moral duty despite the fact that they many times result in the net loss of life.
2. Not that evolution is even related to general survival. It mostly would encourage each individuals survival which would many times necessitate the lack of survival for another group.
3. Even children know the right question to ask when a moral duty is demanded of them. They say "Oh yeah who says". If your answer is evolution says then would bet that even most children would find that ridiculous. Evolution does care about anything. It does not create right and wrong. It only creates self contradictory and completely irregular behavior.
4. Given you the most generous credit I possibly could, your argument merely shows (if true) that at times certain behaviors are consistent with it. There is nothing about that makes them right or wrong.
Has any lawyer in the history of man ever said his client was not guilty by reason of evolution?