Japan and the Myth of “Ethnic Homogeneity”: Reflecting on Contemporary Challenges
The following is a guest article written by Shotaro Yoshida, who traveled to the San Francisco Bay Area with other graduate students from the University of Tokyo—under the leadership of Professor Hideto Fukudome—in January 2025. Shotaro is also a Project Assistant Professor at the University of Yamanashi. SPICE/Stanford collaborates closely with the Graduate School of Education at the University of Tokyo and met with the students during their visit to the Bay Area.
In 2024, the number of foreign residents in Japan increased by approximately 5 percent from the previous year, reaching about 3.6 million and constituting roughly 3 percent of the total population. As diversity grows, university education is placing greater emphasis on diversity initiatives. However, discussions in Japan are also being influenced by increasing headwinds against diversity promotion due to the 2025 change in government.
Despite demographic changes, Japan persists in the myth of “ethnic homogeneity” and the “absence of racial discrimination.” Although discrimination against Koreans, Ainu, and Okinawans in Japan has been recognized as racial discrimination, and a comprehensive anti-discrimination law has been recommended, this reality is often ignored. This may reflect historical amnesia and a tendency to perceive diversity as “foreign values.”
The U.S. experiences of Chinese immigrant exclusion (1882) and Japanese American internment during World War II, as discussed in this SPICE-supported program, provide valuable perspective for reflecting on Japan’s own history. This highlights that Japan has its own history of similar discrimination and exclusion.
The discriminatory structures formed during Japan’s modernization since the Meiji period developed a unique concept of “ethnicity” to counter Western classifications of Japanese as the “yellow race.” This concept functioned to differentiate Japanese from Chinese people.

Since Yokohama’s sea port opened in 1859, Chinese immigrants were important trade intermediaries, and bridged the West and Japan. By 1899, however, Japan created systems to clearly separate “inside” from “outside” through immigration and nationality controls, with discriminatory rules targeting Chinese laborers. This blood-based system became the model for Japan’s current foreign resident management. Photo above of Chinatown, Yokohama, courtesy Shotaro Yoshida.
During the Great Kanto Earthquake of 1923, not only Koreans but also many Chinese residents were killed. During World War II in 1944, approximately 40,000 Chinese were forcibly transported to harsh labor environments including mines and ports in Japan. At the Port of Tokyo alone, about 29 percent of these transported Chinese died within a short period. During the same period, civilian internment of “enemy nationals” also occurred. These historical facts have long been overlooked in Japanese society and inadequately addressed in history education.

In the San Francisco Bay Area, the history of Angel Island Immigration Station and Japanese American internment is preserved in museums, with educational programs communicating these experiences to future generations. For instance, SPICE Instructor Jonas Edman delivered lectures on Chinese exclusion at Angel Island, while SPICE Director Dr. Gary Mukai, who has developed educational materials on Japanese American internment, guided us through his hometown San Jose’s Japantown, and we also had a tour of the Japanese American Museum of San Jose. This appears to serve as a foundation for contemporary diversity discussions, in stark contrast to Japan, which has few facilities or educational initiatives documenting histories of discrimination and exclusion against Chinese immigrants and others. Photo above of graduate students from the University of Tokyo, courtesy Shotaro Yoshida.
The prerequisite for meaningful diversity discussions in Japan is confronting its history of discrimination and exclusion. Engaging with the diversity that already exists in Japan and these historical facts through college education is both an exercise of academic freedom and our responsibility.
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Shotaro Yoshida, a PhD student in the Graduate School of Education at the University of Tokyo, shares his thoughts following a study tour to the San Francisco Bay Area led by Professor Hideto Fukudome.