Apparently in Hawaii the last to come over in his generation were the Filipinos. They are the Hawaiian Mexicans. You didn't socialize with them, you never ate their food, and they were crazy poor people with knives. It's not just my dad, but all Japanese and Chinese Hawaiian are totally racist on the poorer races.
Has he seen the movie "Picture Bride"? I bet he'd like it. A woman answers a mail-order bride ad, comes from Japan to Hawaii only to have a shitty life among other Japanese and Koreans on a sugar cane plantation.