I'm having trouble evaluating discrimination in Japan through my US paradigm. I think the title of this post is a little funny. Though there are a few examples of racism, the post actually addresses the broader subject of discrimination. Perhaps "racism" in the title gets more attention.
No doubt. It's odd that some of the things that most interest us about a culture are rooted in the types of behavior that we often try to disrupt here in the US. By personal experience, I can say that Chinese are not as sensitive the to issue of racism as Americans are (in general) either. It's not to say that China is homogenous, however. There are more than 50 minorities in China, and racism does exist between some of these groups. Han/Uiger tensions are pretty well-known. I think they just lack a history that demands such strong examination of racism as ours does.