[Opinions] Re: I absolutely agree with you.
No, because Japanese people are not in the same oppressive situation as African-American people and cultural appropriation is when a group with power assume cultural elements that they choose while those that they originated from remain disempowered.
I used to live in NC. I now live in MS and have done for the past few years. The Carolinas are completely different to MS and AL- night and day different to me, in a way I didn't expect. I also saw a huge amount of implicit racism in the Carolinas that may not always be obvious unless you're looking for it...like extreme segregation (while no longer technically legalized) and laws that do increase African-American disempowerment such as voter-ID laws and gerrymandering districts in elections. The Republican party in NC has literally said that they want to keep POC from voting so they don't lose.
It is way worse than that down here. But if you're white, you need to look for it because the chances are that it's all being tucked away to the side- that side where POC are kept and where they don't have a mainstream voice still. :(