Evidence 1: If we look at the book Hiroshima, we can find a piece of evidence of how the Japanese reacted to different situations. Page 41, last paragraph states: "He bought it at once, moved there, and hung out a sign inscribed in English, in honor of the conquerors;
M. MUJII, M.D.
Medical & Veneral
Quite recovered from his wounds, he soon built up a strong practice, and
he was delighted, in the evenings, to receive members of the occupying forces, on whom he lavished whiskey and practiced English."
This shows how a Japanese citizen respected and recognized that the US had one, and wasn't a sore loser, and didn't try to rebel or speak ill of the "conquers".