I am not sure I endorse world government as an ideal but I am in favour of universal social justice and peace. I doubt that world government will deliver that. Too easy for it to be hijacked by some self-appointed elite. A balance though has to be found between individualism and community and the ideal balance varies over time and space. Generally though, humans are irreducibly social animals. The robber barons who run big business are just as intent on atomising society as anyone. Suits Chicago School economic theory. This is where the radical left and right find common ground>