I believe I've proposed it before, but the Japanese would come out best if they adopted a culture based racism (perhaps greater French instead of British influence?). Therefore everyone remains inferior (minimal alternation of real attitudes) but foreigners can become Japanese if they adopt all Japanese ways and gradually over time this influx will loosen up the rigid bounds of Japanese culture overall. Korea is the key I think, kid gloves + convert to Japanese plan a la Taiwan.
Given how rigid Japanese culture is in many ways (note that even today foreigner extends to racially "pure" Japanese who grew up outside Japan) it is a really tough question overall though.
Given how rigid Japanese culture is in many ways (note that even today foreigner extends to racially "pure" Japanese who grew up outside Japan) it is a really tough question overall though.