I don't really care about the U.S. position with relation to the rest of the world, because nationalism, patriotism and imperialism are utter garbage. I'm not proud of any U.S. or colonist accomplishments.
If we abolish private property, wages and money along with it, resources will not be made artificially scarce by monopolist owners anymore, all will be for all, and nothing but productivity will limit access to materials necessary for space travel, building infrastructure, homes and so forth. With associations cooperating to meet these goals, it is accomplishable.