It's not just Americans themselves even though they are the majority of starfishs. Every race has starfishs and there's not much we can do about it. So don't feel too bad. :/
It's in human nature to be their worst at times.
But this is just... this is terrible... I remember when Europeans went apestuff happy over 9/11, while Japanese refuse to air and publish media that even makes the slightest jab at the Twin Towers attack. An episode of South Park was even banned from being shown on air because there was a parody of "Where were you on 9/11?" by Toby Keith in the episode...
This is just undeserved hatred, the Empire of Japan and the State of Japan are two different governments completely, no one is alive today that bombed pearl harbor or was responsible for its bombing...