Blood Brain Barrier said:
It's...sort of complicated really, the longer you look at it. The way I understand they
are making their characters Asian, it's just a bit idealized and anyone who isn't Asian can easily read it as caucasian.
Because what exemplifies the stereotypical "Asian" or "Japanese" features? Small eyes, black hair, and the skin tone. However, modern anime was initially inspired by the Walt Disney style big eyes on cartoon characters, so that's one feature gone. Anime also has bright hair colors--even when the characters are supposed to be human--but that's more for character identification/characterization than anything else. Because if you think about it, a bunch of cartoon characters with the same hair color would all start to look the same. I remember one series where a character's hair was green, however at one point he dyed his hair blonde, and when they dyed him back to black his hair turned green again.
And as for the skin tone, it is very close to caucasian anyway, and when isolated from all those other features it can be very hard to tell.
This video will help explain a bit more on the difference they portray Asian characters and caucasian ones:
There is a whole other thing about Japan/Japanese media being on the xenophobic side, but that's another topic for another day.