Okay, but that's sort of the point of the plot, other than two guys having sex together ... eventually.
you really should read some articles about how Japanese people see halfus :)
phobia is not racism...
Xenophobia is blatant discrimination. It is essentially judging and treating people who are not your race (outsiders/gaijin) differently. People have phobia because they are fearful of a certain outcome or aspect that may have to face, and thus having a fear of or disdain for foreigners in general is really prejudiced. It is an intense or irrational dislike or fear of people from other countries, which really correlates with racism. Japan is not a melting pot so some Japanese people have difficulty overcoming or understanding the cultural and appearance differences with foreigners; and thus xenophobia is born.
"Japan for the longest time had closed doors to the outside world. Not integrating with other people nor cultures. A sort of pride was born out of this, superiority is a word some folk would use as well.
Then come Admiral Perry who blew open the doors to trade. Mind you, Japan was one of the last hold outs of a country to not interact with the rest of the progressing world.
Many traditional ideas still exist with this feeling of superiority. People who are even half Japanese (hafu) experience some awful bullying as kids and the parents of those kids.
It is about as opposite as you can get to the American idea of the 'melting pot'. While integration is happening here at a rapid pace, it is still quite slow compared to the rest of the world.
Once more integration happens people should (hopefully) shed more the xenophobic ideas that are so old."
the racism is strong in this one