No. The fact is, there was no support at all among the US public for one more day of war. In fact, support had started to wane about invading Japan, which is another reason (for all the right ones) Truman decided to drop the bombs.
In Europe, the US & Br. had nowhere close to enough troops to prevent the Red Army from rolling through Germany and France. There would have been strong resistance, but futile ultimately without the bomb-—but even then, as a colleague of mine in the USAF wrote in “Hollow Threat,” even as late as 1946 we only had a total of about 100 bombs and NO long range delivery systems that could get them deep into Russia in other than suicide missions.
Truman, then Ike, played Europe brilliantly by stalling until the European nations could join in NATO (which still would have been rolled over in a conventional war) and until we had enough long-range delivery systems to make an atomic threat possible. Patton would have gotten us in the wrong war at the wrong time-—a war we won really without firing a shot thanks to Reagan.
>In fact, support had started to wane about invading Japan
The Left was never interested in Japan. Pearl Harbor was just an excuse to attack Hitler after his invasion of Russia. See #13
There is one factor you are missing: the US was not Nazis.
The brutality of the Nazi occupation of Russia doomed Germany. The Russians liked nothing better than getting rid of Stalin. Given half a chance the Russians would have let us do the job. But we gave no impression we wanted to except for Patton.