Anime isn't prejudice or racists. It at times can be QUITE IGNORANT!! First off I would like to explore the SAMBO like representations of blacks in anime. The huge PINK LIPS harken back to a time when representations of blacks as jungle bunnies and watermellon pickers were the norm in the United States. This is where the japanese learned these image.
However, information freely flows now between cultures and animes continued use of these stereotypical images can no longer be attributed to ignorance. Japanese have somehow endearingly incorporated this image of black people into their cultural psyche, despite having access to other images of blacks. So this is in effect a racially motivated stereotype that Japanese artists refuse to let go.
I would also like to talk about the Japanese Image of blacks as sometype of sexual monsters. In hentai the black male is always shown as a sexual frankenstein defined by an inhumanly monsterous phallic member. The member being the sum total of who the character is. To add to this this character usually never speaks but is in the story to show the sexual varility of whatever woman is the focus of the lurid tale. This image was also learned from Americans.
Finallly, it has been argued that anime is made for japanese, however i don't recall anyone in anime looking the slightest bit japanese. They mostly look caucasian. Is this the self image of the Japanese or some secret desire to be white thats manifest in their popular art?
Japan is not above racial stereotyping and oppression of anyone, just ask most of the other asian countries about Japan's world war 2 imperialism. It stands to reason that some of these attitudes would be reserved for black people. However, this particular form of prejudice is a learned behavior so while we are blaming the japanese please spread some of that blame to america as well.