In short, Okinawa does not belong to the Yamato nationality, and the Yamato nationality is unwilling to accept "latecomers". First of all, due to historical reasons, Okinawa people have an indelible hatred for Japan, and it is difficult for Japanese to accept Okinawa people.
Japan has coveted this land since the Toyotomi shogunate era. After all, the Ryukyu Islands are close to China's Chinese mainland and Taiwan Province provinces, and not far from the Japanese island of Kyushu. It is an easy-to-control land of geomantic omen. Therefore, Toyotomi Hideyoshi coerced the Ryukyu Islands by force to provide them with food and grass.
Soon after, Samo Francisco on Kagoshima put further pressure on Ryukyu, making Ryukyu enter a humiliating double-vassal era. In the late Qing Dynasty, the decadent Qing Dynasty was unable to take care of Ryukyu. Japan is also becoming more and more unscrupulous. After the Meiji Restoration, Japan openly turned Ryukyu into a Ryukyu dependency. King Ryukyu saw this and hoped that the Qing court could help him, but he didn't get the ideal answer after writing many times.
Ryukyu people are the aborigines of Ryukyu Islands.
Usually, according to different living areas, they are called Ryukyu people, Ryukyu people, or Okinawa people, Xiandao people, and election beauties. Ryukyu Islands was originally an independent nation-state, and was later annexed by Japan. Therefore, some Okinawa people, Xiandao people and Amami people emphasized their origins, and they were not completely equal to "Ryukyu people" in blood and culture. One stresses location and the other stresses culture.