According to the xenophobia study, even people under 29 in Japan are twice as likely as the entire US population to object to the presence of neighbors of a different race. Older people are four times as likely to object. And with a UN observer saying the racism is primarily directed towards other Asian people which is more than an "anecdote" despite your assertion since he was sent there to assess this specifically, I have to say that I'm not quite sure what you're saying. How do you design a study about the targets of racism that people answer? You're asking for data that has an extraordinarily low probably of existing and trumpeting the fact that of course you are right, because you insist on numbers, any numbers.