Tokyo, the capital, was the industrial and political heart of Japan.
Despite setback after setback, the Empire fought to hang on to every island possible (and we won't mention how many deaths were inflicted on the civilian population of the PI during normal garrisoning duties).
As a result, the bombings had to touch the civilian population, to demoralize it, and make it harder to continue perpetrationg the war - and as luck would have it, that population lived in residential areas built primarily of wood products.
So we bombed, and bombed, and bombed some more - and still the population held on - mainly because of the conditioning they had received, and not so much out of an innate bravery.
You want to say that the war should have been prosecuted differently, or that the US should have left it alone? Do you think Imperial Japan would have let the PI become independent in 1948? What about the other Pacific nations?
Wrong answer, Mr. "History Major". The bombing of Tokyo wasn't targeted at any specific industry, like the bombing of Schwienfurt was, the munitions dropped on Tokyo were specifically aimed at immmolating the population, not the business that help the Japanese war industry. It was a Fire bombing, designed to kill Japanese civilians, not military targets. War crime, pure plain and simple.
Obviously you are the product of a government school that has been indoctrinated in "victors revisionism". LeMay and Harris got their "justice" when they passed into the after life my friend.