You are correct, LH, that there were war movies and comic books that did portray enemy combatants in a highly negative way well into the 1950s. Some even showed civilians in a bad way, but those civilians were usually portrayed as foreign spies, gestapo-like police etc. Rarely, if ever, was the entire population so depicted, and nobody I knew, at least, ever made that leap. Americans were a very forgiving people as I alluded to in my post of 11:47am
It is the same for comic books as for the toy soldiers--the enemy was who the enemy was. While those comics and movies were flourishing, the alien Japanese and the Nisei were quietly, and effectively reintegrating as part of the American main stream.
With due respect, Catspaw, if you know of no overt actions during the 50s and 60s, it is difficult to credit your observation.