John Maynard Keynes noted that governments shouldn't interfere with economic affairs.
Albeit this is a basic answer, World War Two was a major catalyst to an increased focus on internationalism. In addition, financial and political interests (most notably for political interests is the Cold War) are both legitimate reasons to why the United States of America has remained as a major part of international affairs.
It was useful because it was one of the first forms of writing.
They want white power and would kill anyone that is not their color to do it.
