Can objective morality exist in Atheism?

[Meatball]

Great. That's all I was trying to discern from you. On that basis, (that morals are subjective) is there a way to define right and wrong in Atheism?

In Captial-A Atheism? You're treating it as if there was a consensus among atheists, and there isn't. Is there a way to define right and wrong for people born in July? For people who dislike mustard?

My position is that morals are entirely subjective. This is no universal right and wrong. Morals are concept we use to describe societal norms about how we treat each other.

That said, humans evolved mechanisms to deter intra-tribe turmoil. A tribe in which murdering your peers is considered "right" is a less successful tribe than one that considers it "wrong", and so on for theft, dishonesty, etc.