And yet the US is not #1 in pretty much any quality of life metric. The point is there are plenty of nations with varying degrees of US influence that are far from miserable or painful places to live.
Living in USA will be more painful than it is now when USA no longer gets to import a lot of goods giving nothing in return. USA hasn't had a positive trade balance in half a century, people will want back their stuff at some point and that point wont be fun for the Americans.