It is quite clear that Japan refused to surrender. The stuff that link covers is the primarily Togo/Sato message traffic, that I’ve mentioned before. That’s the one where Togo is seeking to feel out the Soviets to act as friendly intermediators, to negotiate a softer end to the war. I’m sure you will recall it. It’s the one where Sato, the realist, tries very hard to get Togo to understand that the idea is a fantasy, and that the only approach is to surrender. Now. It’s the one I mentioned before, one of his final message s before the bomb, if you don’t surrender, “…all Japan will be reduced to ashes and we will not be able (to avoid) following the road to ruin”. That was 4 days before Hiroshima. Sato was correct.
As I’ve noted before, your primary problem is a lack of historical grounding in the subject. It’s the sort of thing that causes you to post odd stuff you’ve gleaned from the internet, as opposed to taking down a book and getting some in-depth knowledge. What you have gleaned here, while something that is part of the discussion, and that I’ve explicated a number of times recently (and over the past 14 years, Heaven knows), is given by a certain individual. Whose background is more usually the European theater. And the Jews. Particularly the Holocaust. Have you googled David Irving?
Since you found Frank/DOWNFALL unconvincing (still don’t know what you would like to correct on the final para on p.348), here’s another source for you to try. THE COLUMBIA GUIDE TO HIROSHIMA AND THE BOMB (ed. Kort). Try all of Part 2 (excellent balanced coverage) and then look at Part 4C: MAGIC Diplomatic Summaries. The Togo/Sato correspondence, mainly. Where, on p.289 you’ll find the quote I gave above. Or you can continue as before, and I will too.
No one in any position of authority (formal or actual), anywhere, was attempting to surrender before the first bomb. The relevant MAGIC traffic shows it clearly. Keep that in mind.