> even centuries old countries like Canada, Belgium, UK, Spain, etc, still have infighting, and even votes to break up... 1. Not all of these are centuries old

> even centuries old countries like Canada, Belgium, UK, Spain, etc, still have infighting, and even votes to break up... 1. Not all of these are centuries old. 2. The fact that they generally agree on a legal system to bring about the changes each side wants by voting on these separatist policies within the scope of that agreed system is impressive in and of itself. They simply want some decisions about their government to be made by different people in a different place which is quite compatible with some hypothetical global federalist system.