Why the USA is the super-power for a while

The United States of America had a novel form of government- a Democratic republic, a manifest destiny on an underpopulated empty continent with plentiful natural resources and brilliant and independent immigrants free from any long-established ruling class or democracy, and all they needed to do was go forward to work and prosper and let the rest of the world go about its usual course of ruining itself. Freedom of established ruling classes is an advantage Americans long held and are now losing with bi-partisan support for corporatism, fake socialism and political correctness, overpopulation and resource exhaustion. In time the U.S.A. may become as oppressive as the rest of the world often or usually is. For a time their are still narrow gates for free enterprise beyond corporate power yet that too may fade.