My father would have been in the invasion force so he was always convinced that using the atomic bombs was the right thing to do. Even if he had survived that, his life over the next few years would have been different and he would never have met my mother so I would not be alive.
Yes, the story of Ira Hayes is very sad. The US government made heroes of the men captured in the photo and had them tour the US (to get people to buy war bonds), and they did not think they deserved any special recognition beyond what all the other military men were doing.