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yeah i guess that is one advantage of nationalism. The right does oppose one-world gov while many of the left quite like the idea. Good that there are enough right wingers protecting us from this horror.

But it does not need nationalism for that. Nations should be broken down to the regional level and then ultimately to the individual. One world-gov is the extreme of maximum centralisation, anarchy is maximal decentralisation and national states sit inbetween, still leaning quite for to centralisation.