Wrong, the Americans desperately wanted war with Japan.
The oil embargo was practically a declaration of war.
They deliberately moved their fleet to indefensible Pearl Harbor in the middle of nowhere as a juicy target.
America was already a superpower at that time. And it cost the Soviets the role as possible superpower since they almost singlehandedly beat the Germans at great cost. All in all a great tactical play by the US, if not cold and cynical.