America has been falling farther and farther from being Capitolist ever since the Roosevelt administration and the New Deal. It is only the Socialist nature of the rest of the industrialized world that has allowed us to stay at the top.
If the Soviet Union had undergone a capitolist revolution instead of a socialist economic implosion, they would have emerged ahead of the US as a world power. Similar comments could be made about Europe and China. Certainly if Africa was to pull off some version of a capitolist EU, the US would be but another voice in the crowd instead of standing on the podium.