He expands on our groupish or tribal nature in these and speaks more directly to why sacrifice and organization is required for the longevity of any "atheist" movement.
I like this guy's sentiment but he too idol worships what he has read in scriptures, ---- while pointing out to others that they should not do so. He ignores the log in his eye and speaks of the sliver in others eyes.
He is right though that we are all fundamentally tied by our own way of thinking of God.