Is It Permissible To Build A Temple In A Muslim State?
Actually if Prophet indeed said some rulings on nation state concept, and how a muslim government should behave for its polytheistic citizens in a nation state, that can work as a good model..
Haven’t done much research on permissibility of nation state and the ideal state. But the prophet’s ‎﴾ﷺ﴿ state was run on itmaam e hujjat concept.