"Hence morality is, broadly speaking, politics."
Besides the fact that I'm a theist, the above is just flat-out confusing. It seems to me that a basic and uncontroversial intuition men have is that they can ask this kind of question: "Are politics moral?" Or, "Is this political system or ideology moral?" Is a- or immorality a- or impolitical? Are we just asking of this or that politics is politics? That seems odd.
Many political scientists agree with Disraeli that "politics are the possession and distribution of power." It seems we can ask if any government whatever has possessed and distributed power ethically.
This can be seen, for example, in the words of Lord Acton,
"I cannot accept your canon that we are to judge Pope and King unlike other men with a favourable presumption that they did no wrong. If there is any presumption, it is the other way, against the holders of power, increasing as the power increases. Historic responsibility has to make up for the want of legal responsibility. Power tends to corrupt, and absolute power corrupts absolutely. Great men are almost always bad men, even when they exercise influence and not authority: still more when you superadd the tendency or certainty of corruption by authority. There is no worse heresy than that the office sanctifies the holder of it. "Regardless of the details, the above expresses the basic and common sense notion that morality is distinct from politics. Morality puts a check on power. It can check the goals and aims of politicians and politics.
It seems I can even ask if anarchist or anomiest "societies" are moral or immoral. It seems that some might be able to say that the less political the more moral something is. Or the more political, the less moral it is. It seems possible that everyone could be killed or made to disappear but me. If this happened, what sense would it make to say there were "politics?" But it also seems true that I would still be the subject of moral ascriptions. That I could still do something immoral or moral. Blameworthy or praiseworthy. Do we not ask if I oughtt to kill myself? Would I have obligations about how to treat other animals? Could I repeatedly torture Bambi for the fun it? Since there was no government or politics in this world, would we not be able to praise or blame my actions? Ask if torturing Bambi for the fun of it is right or wrong?
Perhaps I've misunderstood Edis, but his claim seems downright false.