Then you are dead wrong.
Perhaps. But what if the church had to decide the question: Which is most moral: to drop the bomb and kill 45,000, continue the firebombing (80,000 in Tokyo alone), or invade and kill ten times more, which is most moral?
I think I'm right.
And, among other things, we can add: By the way Russia just declared war, destroyed Japanese troups in Manchuria and was on the way to the islands...