But it is not racism, it would be if they had to change hair color because of their race, but they would all the same require japanese person to dye their hair.

But it is not racism, it would be if they had to change hair color because of their race, but they would all the same require japanese person to dye their hair. If it is not based on race it is not racism, this case it is based on hair color so its "hair color"-ism I guess.