This is true to a point. While as a society their policies are not very open, as someone who doesn't look at all Japaneses I can't say I have encountered any racism. I feel a lot safer in Japan's large cities compared any North American, South American, and European large city I have lived or visited. And I have spent a significant time in Japan over the decades and live in cities in multiple continents. I am married to a Japanese woman and have in-laws over there. Although I am also white, bigger than most Japanese people, and don't look poor. But I will concede that it is possible it all happens behind my back. I also haven't ever tried to get a job or rent an apartment in Japan. Perhaps my experience would be different then. I do have a half dollar sized tattoo on my back and I have never been evil eyed or denied entry to a public bath or hot spring. And never had a problem at a store, restaurant, hotel, or any other establishment or public setting. But my father in-law once got guff by some people in his neighborhood after I went jogging without a shirt on every day of my first visit. There are lots of things which are not codified in law that are consider bad manners or in poor taste. A big one is drinking or eating while walking. I think that sometimes people unfamiliar conflate the reproach with racial animus. When what it reality is people being called out for unwittingly breaking unwritten rules they probably didn't even know about. My impression is that manners and the not looking poor supersedes any facial features or amount of melanin one may or may not have. I am not rich, but I am not poor. Plus my parents taught me manners, and I bothered to learn Japanese etiquette. But I agree, I don't see them allowing a bunch of non-ethic Japanese people to move to their country any time soon.