You’re leaving out the part where the peace talks were already a non starter. https://www.nationalww2museum.org/war/articles/japanese-diplomacy-1945#:~:text=Japan’s ambassador to the Soviet Union in 1945%2C Naotake Sato,That effort ran through Sato.

After what japan had done, there should have been more bombs dropped.

And I know your argument is disingenuous because the fire bombing of Tokyo killed more people.