And yet we still have states, and they still provide basic services (e.g. roads, water, waste disposal). Why is that? If they were as useless as you think they are we would have removed them a long time ago. Maybe there's still something useful in them?

Regarding your point of reading up on USSR etc.: I've talked with people who lived in these countries at that time, thanks. They don't see it as black and white as you do. Which kind of makes my point.