No, they weren't. They were simply saying all they would accept would be unconditional surrender. The only bone they threw was saying that did not mean the extermination or enslavement of the Japanese people. Nothing about the emperor, no efforts to work with them directly or address the political situation.
Japan's refusal to deal with the US prevented the US from working with Japan directly.
That wasn't the US's doing. That was Japan's doing.
If you disagree, provide evidence.
"Japan's Decision to Surrender" by Robert J. C. Butow, Chapter 5: Interlude in Switzerland
Yoshiro Fujimura tried to bring about negotiations between the US and Japan.
The US recognized that he was acting without authority, but also recognized that his efforts could lead to real contacts with Japan, and actively pursued the contacts that he was trying to establish.
Japan stonewalled the contacts and they went nowhere.
Note our above willingness to pursue contacts with Yoshiro Fujimura.
I'm not aware of the US saying one word about the emperor before the surrender. Since you disagree, provide evidence.
I'm not saying we talked about the Emperor. I'm saying we made every effort to pursue diplomacy with Japan.
That's the myth, the justification used.
How many Americans would have been killed by the 20,000 Japanese soldiers killed at Hiroshima had there been an invasion without the A-bombs?
How many Americans would have been killed by other soldiers shipped through Hiroshima had there been an invasion without the A-bombs?
Had the second or third A-bomb destroyed Kokura Arsenal, how many American lives would that have saved in an invasion?
Politically, you're right about the incentives for Truman. I think it largely comes down to not placing any value on the lives of the Japanese people.
Collateral damage is unfortunate, but Mr. Truman had a war to win.
ignore things like the emperor feeling he'd be killed if he pushed for surrender.
How is that relevant to America's use of the A-bombs?
You don't care about other options.
There were no other options. Every possible option was already being pursued.
As I said, they could have made a real effort to try to work diplomatically with the situation to get a surrender, especially when they had all the confidential info on the situation and thinking of the leaders. There's every indication it would have worked.
They did do that.
History shows that it didn't work. Japan refused all contacts with the US.