No, you really really don't want this. I don't know what utopian partnership of nations you have in mind, but what you will get is World War 1 remastered.
Currently, a large portion of the voting age US citizenry no longer believes in the peaceful transition of power. The highest instance of the US judicial system is under the control of specific authoritarian and religious elements for the foreseeable future. We can't know how the US will evolve next, but the picture doesn't seem really rosy at all. We don't know when the next reality TV star or populist politician will take control there, or which ideological movement will capture the institutions in the next few years. Given the country's history of intervening in other nations, we can only guess at what the consequences would then be for the rest of the world.
Given all of this, having no superpower would seem preferable.
[0]http://blog.nuclearsecrecy.com/2016/11/18/the-president-and-...