Perhaps you should read the US Constitution - there is a section called the "Bill of Rights". It says just what you can and cannot impose on people, moral or otherwise. Society has no absolute way of doing otherwise, as you contend. In fact, the whole purpose of the Constitution is to keep the majority from imposing a moral system on the minority that violates human rights. In the end, the law contains only those components of moral systems that we all agree on and also conform to the basic rights of man. Robbery would be among them. Abortion would not.

Laws are not "codified moral judgements" they are "compromised and adjucated moral judgements". You can codify all you want, the courts in this country get to uncodify them. Thank God. They are all we have left between us and mob rule by the dominant religion, something the USC was designed to prevent. If it wasn't for the USC, this country would be executing athiests, and probably Jews to.