You actually have ZERO knowledge of genetics as proven by your posts. Are you like 14? Japanese most certainly do not have European or Middle Eastern roots. Maybe they WISH to have those roots--but all you have to walk around the streets of Tokyo to notice that Japanese look and are 100% asian.

As to Japanese having Ainu roots, maybe like 5%; they certainly do not comprise a significant portion of the population and their contribution to the Japanese gene pool is certainly overplayed by the Japanese to obscure the "asianess" of their background to tie them in somehow with European. Their contribution to the culture and genepool of Japan is minimal at best. And even any caucasian would laugh at the notion that Japanese are somehow a hebrew tribe like the 12 tribes of Israel or some such nonsense.

Japanese are genetically a mix of Korean, Malay/Polynesian and Ainu.

Many Japanese however like to obscure their background by coming up with ridiculous unsupportable theory such as they have austronesian roots or their ancestors are from South America or some such nonsense, anything but to admit the most plainly obvious.