JOI ITO WEBから：
Then we talked about Ishihara and plain old-fashioned racism. A university professor pointed out that it was a problem, and described his theory on what may be one of the causes. Japan imported single-race nationalism as a unifying concept from Germany during the Meiji period. The Japanese word, minzoku, which refers to its people comes from das volk. Japan forced a national dialect and basically centralized control and stamped out a great deal of diversity in order to empower the central government under this process. Before this, Japan was more diverse and more tolerant. Later, this would blow up as a working philosophy in Nazi Germany and Japan. However, as a strategy of combating the threat of communism in Japan, the US occupation and the Japanese government allowed these nationalists and the sense of racial purity to remain and fester in modern Japan in order to fight the more liberal emerging left-wing of Japan. Most people agreed that Japanese needed to increase immigration to deal with the population and aging problem, but that with this latent racism and intolerance for diversity immigration would not work well.