They did not get vaporized in the fireball. We have survivors at the hypocenter. Intense burns and radiation poisoning killed most plus conventional blast damage mechanisms. Half the acute deaths happened after the first day.
Sure, and I dunno, it probably does no one any good, I just find it mildly annoying when people treat the atomic bombs dropped in ww2 as some kind of completely incomparable atrocity.
Like the beatles joke, "were the atomic bombs the worst atrocity of all time? They weren't even the worst of that war!"
I mean, we don't really need to rank awful things, we can acknowledge anything beyond a certain level is awful without comparing them, but lots of awful things happen without involving nukes.
I mean, even only considering bombing raids, more people were killed during the various fire bombing campaigns against japanese cities and so on, granted those took 1000 planes instead of 1, but somehow I doubt the people burning to death considered that a meaningful distinction.