Japan is intensely racist. My spouse lived there for a year. When she went about her business outside, small children who saw her would literally burst into tears screaming to their parents about gaijin.

That never happened to me, and I have been living there for 8 years now.

But I would agree that Japan is generally racist, as in most Japanese believe there are fundamental differences between people due to what they call race. I am not sure whether most Japanese would consider Korean a different race, but I would not be surprised either.

See below, written 10 hours before your question. There is still overt, broadly-recognized and tolerated ethnic and hereditary discrimination in Japan, not just in hiring and school admissions but in stuff as basic as housing. Japan appears to be stuck in the 1960s in terms of public policy on this issue.

Below is a discussion of Burakumin and ethnic Koreans in Japan, which doesn't appear to be racially predicated, unless you're operating under an unusual definition of race. You've specifically claimed that "Japan" is "intensely racist". Are you going to claim that Koreans and/or Burakumin are racially distinct from Japanese?

Whatever semantic thread you're trying to cling to in order to keep this argument alive, I'm not interested.

No, please, it's not semantics, I'm directly refuting your claim. If burakumin and ethnic Koreans in Japan aren't racially distrinct from Japanese people, then discriminatory treatment of those people isn't racism. Your example doesn't support your claim. I'm inviting you to please explain how the example supports your claim. Maybe a good start would be providing an operational definition of "racist", as in "Japan is intensely racist".