I was not talking about the general concept of morality. I was talking about "divine law." Regardless though, the extreme diversity in what is considered "moral" in America is evidence enough against your claim that such a society would automatically disintegrate. The only laws on which we have forged a meaningful consensus are based on self-interest, not morality.
It was not I who said such a society would fall into anarchy. You said that if you have the right defy break the law because it opposes your personal idea, whether your personal idea of divine law or your personal idea of morality, such a right would lead to anarchy. But whether such a right exists or not, the possibility of such defiance exists - and has our society then become anarchy?
Our society is governed by an unwritten idea: the idea of universal brotherhood of all mankind, and the application of such alone is disputed. Nobody disputes the idea in and of itself, and so we do have a common idea of morality and right and wrong.
Also, just a note to anybody else reading: notice that he did not disavow or disagree with that last line of my first post. His ideas are that of a universal, “utopian” uniformity - an entirely common morality, which he claims is needed so that laws are followed, will naturally produce such.