Whataboutism? Really? Please stay on topic.
Your response was "what about Japanese war crimes?"
Please stay on topic.
The US being in the Philippines and Hawaii has nothing to do with Hiroshima, other than the US being there when Japan attacked. Japan attacked the wrong country and this resulted in decisive force being used against them.
And, sorry, "whataboutism" is a cheap cop-out. Historical incidents should be seen in context, not just as isolated finger pointing (and always from one side to the other).