The bombs were dropped to prevent the deaths of thousands of US citizens. Japan should have thought of it before they bombed Pearl Harbor.
Some did; Yamamoto, for instance.
Japanese casualties under such circumstances are irrelevant.
They attacked us, and over the course of a few days in August 1945, we ended a World War that had lasted almost a decade, and cost countless millions of lives.
Hand-wringing generals opinions notwithstanding, I bet if Eisenhower had polled the armies under his command, the vote to use the bomb would have been overwhelming.
Pieces like this epitomize the folly of historical revisionism.