A narco state is another option as well. The alternative is to hollow out the institutions of an existing state using a movement. Takes about a generation, but

A narco state is another option as well. The alternative is to hollow out the institutions of an existing state using a movement. Takes about a generation, but you get an intact society with it. Game of Thrones' "Sparrows," are an example of it. You'd need a viral idea that people would seize upon and be willing to sacrifice themselves in service of it. They could teach it to kids so that it's all they ever knew, and as they matured they would inherit the reins of institutional power, and then use them in service of the idea. It's easier to get people to be against something than for it. I can't think of one off hand, but I suppose if you got them to imagine there were no countries, which wouldn't be difficult, and then not believing in anything strongly enough to kill to save or protect, and then no religion either, they could imagine living life in peace. Anyway, not to solution it. Just saying, it's not as complex as the OP writes.