History matters. So does education.
You skipped those two and watched too much Saving Private Ryan.
Quick history lesson: the Americans never made it to Germany. It took two full whole months since the capture of Germany that the 'allies' even got into Berlin.
Nuking Japan was an easy option because no ally was fighting against Japan in the Pacific, only the USA. After a brutal European campaign, and with the notion that they would be fighting alone, moving the same men to the Pacific was both daunting and soul crushing. Added to the Soviet influence in Europe after taking Germany, freeing the concentration camps etc. , the Americans chose to use the nukes because ultimately, they were lazy and wanted to focus on a new war, a cold war.
Learn history, will teach you a lot about life.