He has no grasp of historical reality whatsoever.
The Japanese couldn't give a single fuck about ancient American racism, then or now, given it was not even a concept anyone really gave a shit about back then and Japan itself was historically closed to all things foreign until Francis Xavier rocked up in Kagoshima in 1549 ... Portugeuse/Spanish/Dutch Jesuits got in in the 16th century but then the Emperor banned Catholicism and Christianity as a threat to 'national unity' and that was that .. it took until the 1870s and a bit of gunboat diplomacy via Commander Perry to start the old ball rolling vis a vis foreign trade and meanwhile, long before 1941, in fact as far back as the 1800s, the US had quite a history with varied immigration including Chinese and Japanese. Japan on the other hand .... lol. The place is still 98.5% ethnic Japanese in 2019 for a reason. Even you marry in as a foreigner and wish to try for citizenship, you are required to renounce your own nationality. Compare and contrast and who'd the fuckin' 'racist' now?
Japan like most of East Asia is obsessed with national, cultural and ethnic homogenity and have zero fucks to give about modern sensitvities about race, least of all the kind invented post-1960 in the USA. Korea and China are quite the same. The rest of Asia isn't really singing from the same hymn sheet as woke westerners either. Meanwhile, he's so dumb he's trying to sell no.1 Nazi Germany ally Japan as some pinnacle of woke anti-racism. Cretin. He probably couldn't give you five correct simple facts about WW2. I'm sure he has no idea that Koreans and Chinese historically hate Japan's guts anyway due to Japanese imperialism in Asia which includes events that make the Trail of Tears look like a trip to fucking Disneyland and the internment of USA-based Japanese seem rather quaint and kind given the horrific vicious deaths and tortures they inflicted to their foreign captives in China, Burma, Singapore etc and sometimes entire populations such an Nanking (see: 'the Rape of').
The guy is an uneducated, unread, know-nothing sped trying to get woke points by pulling shit that sounds appealing to equally uneducated teen wokists out of his festering arsehole.