Do people really think that the Japanese are incapable of being racist? Honestly I would say that they are ignorant of other cultures, so when they do end up making characters of other nationalities they pick out stereotypes, sometimes offensive, partially because they don't have a history of diversity in their country to understand why this could be a bad thing. Racism is not the same as hate. We're all a little racist now and then, I prefer to try see my mistakes and try not to make them again rather than denying that I said something offensive.
Also, keep in mind that just because something offend you or strike you as racist doesn't mean it won't offend other people or that other people won't find it racist. You might note that the white/American stereotypes don't bother you, but white people make up a huge portion of the media and are portrayed in many different roles and personalities, esp white men. Black men and women on the other hand don't get a ton of representation in the media and in tons of other fields, plus they have a history of being second class citizens (also, slavery).
Seeing as how much of media is orchestrated and written by white men, we aren't really getting a view of how black men/women, and women in general and minorities live their life or view themselves, but of another group's impression of them. These impressions sometimes are based not on experience, but of representations of these groups that have been presented by the media. Some people even refrain from writing minorities/other genders if they don't have experience with them, for better or for worse, intentionally or not. Food for thought: stereotypes can be, are often, and have been built on racism and/or sexism.
For a pretty lighthearted intro people are really getting defensive... The gist of what I've heard is that every thing is fine the way it is even though its not "perfect" (basically negating any complaints leveraged at the industry as nitpicking) it's fine the way it is and if you complain about that that makes you racist/sexist. Not that every comment is like this, but its just a general trend I've noticed. Sociologists often note these arguments and others used in this thread are often used by a majority to silence a minority.
I'm not trying to say that you shouldn't enjoy games that have a problematic portrayal of other races and genders or be ashamed that you enjoyed the games. Hell, the OP enjoyed the game. But it would be nice if people could see how limited/biased portrayal of non-white/Japanese and non-male people (ie, most women healers/wearing skimpy clothes, most black men muscle-headed brutes) could be a problem for other people (newsflash: not all black people/women/minorities have the exact same opinion on portrayal of their groups in the media) but they'd need to first admit that there is a problem.