I don't know if miyazaki movies count as "anime" but a lot of his characters are definitely european. And I'm sure there's some context here to explain why his characters are obviously european and the other aren't. But if you hold them up side to side
They are anime. And that's because a lot of his characters are European.
Spirited Away, Princess Mononoke, My Neighbor Totoro, Grave of the Fireflies, Pom Poko, Whisper of the Heart, The Cat Returns, Only Yesterday, I Can Hear the Sea, and Ponyo on the Cliff by the Sea, all take place in Japan and feature Japanese characters.
Kiki's Delivery Service, Porco Rosso, Howl's Moving Castle, and Castle in the Sky take place in various European countries and feature European casts.
As for Nausicaä of the Valley of the Wind, I'm unsure.
Geek that I am, I've seen all of them, and I've read Howl's Moving Castle. The reason that the latter are European is because they take place in European countries (ie, Italy, or fictional England). They also have European names. But the link Kuwidelu provided explains their appearances. And even in Porco Rosso, the American in the movie (the stereotypical Western cowboy) has a very foreign appearance.
In the former, especially the movies that feature a bunch of Japanese culture and history, ie Grave of the Fireflies (saddest movie ever), it becomes obvious what race they're supposed to be.
I mean, even in really flashy animes like Clannad, it's obvious that they're Japanese. They say they're in a school to learn English. And the singular blonde on the cast says he uses hair die. When he stops, his hair is jet black. The hair colors are also used to indicate personality types. Naruto (as much as I hate it) is a big example of that.
Anyway, I've tried explaining this to my parents, but they don't understand. It's frustrating. They think the Japanese want to be white because of WW2, when, in reality, most of them don't even know about WW2 and have seen very little people who don't look like them. *sigh* My parents think everyone self hates.