No to all those questions. He even uses magic intercepts for his claims. He is twisting the information and in some cases outright lying.
But what is the point if you refuse to even read the documents?
I have glanced through all the URLs, sir. Each seems to support the factual allegations the posters have claimed they would. But BOTH scenarios cannot have occurred, and at this point, I am kinda sorta thinking this is as far as I'm gonna get.
I'm heavily inclined to believe what you have posted, RetiredGySgt, but I still have some doubts. More or less the same place I was in when this thread started.
The info they are pointing to is an incomplete picture.
In many ways, what you are saying about both scenarios being impossible to co-exist is exactly what was taking place. There was the "official" position that the nukes were the only way to force japan to an unconditional surrender then there was the more factual position that japan was trying to surrender.
In both countries there was a power struggle between the military and civilian leadership, but their agendas were in role reversals. In Japan the civilian side was more apt to seeking peace than the military but in the US it was the military that was pushing for peace more than the civilian leadership under Truman.
In regards to your OP question about the "necessity" of the bombs, what does it tell you that every top US military leader has agreed that the bombs were not necessary?