Okay, I'm pretty sure the "don't eat foreign foods ever or you're an evil appropriator" crowd is mostly either trolls or strawmen, because that just sounds to me like someone saw people talking about cultural appropriation and went "this is completely unreasonable, let's mock them". I dunno, sounds like an exaggeration to me. Of course, if people are legit saying this, I disagree with it.
And from what I can tell, utilizing cultural elements for fun&profit while deriding the group that spawned it would still include our hypothetical bellend into the concept of cultural appropriation, because they're adopting the culture wrong.