without context it seems like Hegelian dialectics... if you dont know what that is let me put it into simple terms... if there was a radical left in the country the radical right would have to take it over or vise versa and then the radicals would have to fail at their government so a new government that is constitutional and balanced is made.
Generally speaking, after <span>world war 2 many Americans shifted to "white collar work," since the need for large-scale factory production had largely diminished. </span>