Modern Japanese nationalism is based on the idea that unlike other Asians - especially Koreans and Chinese - Japanese are mixed with the Caucasoid Jomon people (Japanese aboriginals and ancestors of the Ainu people) who Japanese nationalists refer to as the "original Japanese". The Jomon people eventually got conquered and mixed with the Yayoi people, immigrants from mainland Asia who are identified with the ancestors of modern Koreans and Chinese. Now that's a downgrade and a half.
Label: hate