A nation-state is a nation-state, and they are all based on force & coercion. Any time there are "taxes", that means someone is being stolen from, and thus not a moral or efficient system.
For most of human history, these monopolistic centers did not exist, and the current trends in culture are all moving back towards the decentralization and communalism that allowed humans to advance to the point that those violent sociopaths even had the possibility of creating monopolies.
In the past years looking at what can and is going on in the world of politics and power, I became very pessimistic about that.
Well there's your problem, you're looking at the monopoly game, and the stories it wants people to hear. None of that has anything to do with actual humanity, current technologies, or the consciousness of 99% of the human race. "Politics" is, by its very nature, simply the doings of a small group who want to control others.