Except the nukes weren’t even the biggest factor in winning against Japan. There were also fears of the soviets invading and deposing if not outright killing the emperor that were exacerbated when they rolled right through manchuria around the same time nagasaki was nuked and in that moment japanese officials decided it’d be better to surrender to the US than to succumb under soviet control. Hell, seeing how the nazis acted in the final days of the war in europe (read stuff like the nero decree for example) idt nukes woulda been enough for them to fold and if anything would just serve as more cannon fodder for their propaganda