Are there descendants of Ryukyu people in Okinawa Prefecture, Japan?

Located between Chinese mainland and Japan, Ryukyu Islands has always been an independent Ryukyu Kingdom in history. Long-term tribute to China in the Ming and Qing Dynasties,/kloc-0 was annexed by Japan in the late 9th century, and was handed over to the Japanese government by the US military in the 1970s after World War II. According to incomplete statistics, before the US military seized Ryukyu, the Japanese army slaughtered more than 260,000 Ryukyu people, and the pure Ryukyu people on the island basically did not exist. After World War II, Japan immigrated to Ryukyu several times, and the Japanese government also "forced" Ryukyu people to Japan in disguise, such as "Osaka Ryukyu Population Exchange". Today, almost 80% of Ryukyu islanders are descendants of 1894- 1895 who immigrated from the Japanese archipelago around the Sino-Japanese Sino-Japanese War of 1895. Although they claim to be Ryukyu aborigines, most of them have ethnic origin. Today, there are more than 2 million descendants of Ryukyu, but most of them have been integrated into the torrent of the four islands.