Nationalism has gotten a bum rap from bankster installed dictators like hitler and saddam hussein who acted out bankster war agendas (although hitler seems to have gotten out of control, he was only supposed to attack russia). But at its core nationalism is only an extension of community. The tendency to tyranny is a function of the size of the social unit. In that respect world government will be far worse than a diversity of nations, even nations at war. Because when the whole world is one nation under fraud (banksters), that nation will be a battlefield without borders.