Americans have done some historical good

Rico says that, besides providing a 'light unto the world' by its very existence, the United States has helped whack some bad guys along the way, directly or indirectly (okay, okay, the Russians helped):

Adolph Hitler
Czar Nicholas II
Prime Minister Hirota Koki
Prime Minister Tojo Hideki
President Saddam Hussein
Prime Minister Pol Pot
Prime Minister Benito Mussolini
Prime Minister Ion Antonescu
President Babrak Karmal