What I meant is that "The Selfish Gene" can't possibly refer to a single gene. It's shorthand for referring to a complex set of genetic traits. And I would agree that genetics plays a major role in the morality of the human species and individual humans specifically. I'm just saying that morality comes naturally to us, and that it's not necessarily more natural to base morality on religion. Or selfishness.

At the same time, there is a school of thought which states that our human need for religion is also due to a set of genetic traits.