Au contraire. WWII in the Pacific was won with two bombs. Even in Europe, tens of thousands of bombers over Hitler's Germany turned the tide, as well.
Yes, I remember that, too.
Japan surrendered after two nukes. And also after the deaths of >2 million soldiers, sailors, airmen and marines. And also after the sinking of almost the entire IJN. And also after the burning of Tokyo, Nagoya, Yokohama, Osaka, and Kobe.