That's still completely irrelevant. The claim is about "food in Japan", not "Japanese food" somewhere else. Your sources are about Japanese food in the USA, whi

That's still completely irrelevant. The claim is about "food in Japan", not "Japanese food" somewhere else. Your sources are about Japanese food in the USA, which can be different, because of local supply & demand. Ethnical cuisine is often in foreign countries very different served from the original dishes for various reasons. And BTW sashimi is not sushi. Usually, it would not be put on rice either. The cut and preparation of sashimi and sushi-toppings are different.