I can see that my statement "Typical atheistic reasoning" can be construed as a slight. Believe me when I say that my intent was to let you and others know that I have heard this before and disagree with it.
Atheists are no more biased against God than theists are biased for God.
I am not sure I understand this point. "Theists" are biased in favor of the existence of God. I thought "atheists" were biased against the existence of God. Those with no bias are better described as "agnostics".
there are a number of moral tenets that cross time and culture.
No disagreement with this but I suspect there would be disagreement on the reason for it.
Where are those 'Christian principles' from?
The simple answer is from God. Of course if you don't believe in God this makes no sense and you need to come up with your own explanation.
If evolution is the driving force behind moral beliefs then those 'Christian principles' are a product of evolution. In fact, if evolution is all there is, the belief in God is an evolutionary adaptation.
You believe this, I deny it.
Remove God from the equation 'completely' and nothing would change. God, Christianity, Islam, Hindu, atheism,... would all be the product of evolution.
If you think there is no God then this could be your belief. I believe that if you "Remove God from the equation 'completely'" then everything would change. Most fundamentally, there would be no Christianity, Islam, Hindu, atheism,..., or evolution to discuss. Of course neither of us would be here discussing it so it's a moot point.
I took your first comment as an indicator that you believed being an atheist precluded objective reasoned responses. Guess I was wrong.