I agree with a bit of that. It was a show of force for Russia, obviously, although Truman had already learned that Stalin knew of the success of the nuclear project.
But it also undeniably forced Japan’s immediate surrender, that’s not a fact that is debated by historians as you just claimed. You could say that there were other factors, which obviously there were but they surrendered unconditionally the day after Nagasaki… if you know of historians that think this surrender had nothing to do with the two atomic bombs I’d like to know their names.
just to be clear on the timeline:
Aug. 6th 1945 - bombing of Hiroshima
Aug. 8th 1945 - USSR declares full war on Japan, invades Manchuria
Aug. 9th 1945 - bombing of Nagasaki
Aug. 15th 1945 - japanese emperor breaks the gridlocked tie in council to declare surrender
so to be clear, its not a historical claim that the bombs didn't necessarily prove to be the final reason Japan surrendered, nor my claim. its my claim and a claim many echo that the bombs were entirely unnecessary to get a surrender, also an invasion itself may have been unnecessary. the Japanese council was already debating surrender before either bomb or USSR pivoted most of it's forces from the western front. Japan was encircled, the european allies were ready to reinforce both US and USSR forces. The US's war machine was at full tilt and between the may surrender of Germany and August all focus turned to Japan. Hirohito in an interview much later on in the 1970s admitted that while the bombs shocked him, his council, and the nation they were already depleted and it was clear they could not fight on heading into august. it was only a few council holdovers that wanted to fight which were losing favor among their peers with each subsequent council meeting. The Potsdam Declaration didn't specify the Emperor's fate or status moving forward, a major misstep by the allies maybe due to cultural differences and not understanding the reverence japan had for its spiritual ruler, then zero further attempts from July to Hiroshima. imo because they wanted to bomb them, and u cant bomb someone who surrendered.
so really my main point was the bombs were not motivated by japanese surrender, but rather a show of force to the world. perhaps even an attempt to dissuade large scale conflicts moving forward.