The US spending tax dollars should only be to help people; not to bomb their houses.
I don't see the issue with the UN enforcing an annual military budget of every country on the planet to be $0. If the country is very big (the US, China, etc), then break them up into their subdivisions and lets make the world one nation so there is no more point in spending military money anywhere, which is a waste of money that harms people because their houses get bombed.
Military spending would then make as much sense as Michigan invading Ohio for the Toledo strip.
Freedom of movement for everyone; yeah; Brazilians can move to America, but Americans can also move to Hungary or Manitoba or Alberta. I'd like the option of freely moving to Guyana if I wanted too or some place like that without government restrictions.