This is the same old, same old politico-ideological pap thats been served to Californians for decades. When I first came to CA 36 years ago, I was shocked to find that it was a big deal. That the teaching of WWII in the schools consisted of the Japanese internment and the Atomic bombs.
It was obviously an engineered guilt trip to make Americans depressed about their role in WWII and to question their role in the world. I would not be surprised that the whole thing, the emphasis on this, was some Soviet effort run through agents of influence.
Propaganda is very often a matter of emphasising fact x, which is made out to be supremely important, and ignoring fact y, which doesn’t matter.
Being a descendant of survivors of the Manila massacre, in which 100,000 people were murdered with incredible viciousness, the fact of the Japanese internment seems to rate not even a footnote in the tale of WWII.
Ignorant pols and others seem to forget what the Japanese armies did to the Chinese...Koreans...and Filipinos..they forgot that the Japanese had taken two Aleutian islands...if it had been a remembrance of the depravity of humans throughout history...that would be more acceptable.