You seem to think communism is the only alternative to the American system? Given how differently various countries run, and communism is almost dead (even China is not really communist anymore) its clearly not true.
The US (and the rest of the world) is run increasingly on oligarchic rather than free market lines anyway, so that is the real comparison.
The US (and the rest of the world) is run increasingly on oligarchic rather than free market lines anyway, so that is the real comparison.