An invasion of Japan would have cost many lives on both sides.
Dropping the bombs helped save Japanese lives as well as American, British, Australian and others.
Total wars will always be fought, and it's always messy. Only the dead have seen the end of war.
“Many of our fathers, mine included (a Army Air Corps pilot), would have told you that the Japanese were savages with POWs”
POWs captured by the German Nazis had a much better chance of surviving than those captured by the Japanese Nazis.