They're not anime, just American cartoons. Just because it's made in a style similar to that of some anime doesn't make it an anime. For example, a book written in English by an American about a Japanese boy living in Japan with a Japanese style of storytelling doesn't magically make it a Japanese book, does it? Not to mention, MAL and ANN don't classify them as anime, and they're the leading databases on anime and manga.
Anyway, finally got around to finishing Revolutionary Girl Utena. Man, that was one crazy anime. I still prefer Ikuhara's Mawaru Penguin to this, but he did a great job considering it was his first real work, made back when I was born. Animation can be a bit off and some parts are redundant, but the highs are some of the highest highs I've ever experienced in anime. Not for everyone, but I don't regret watching it.