first off, anime targets anyone. There are kids.
http://fukung.net/v/405/1071358018863.jpg
Second, it's not that people are hating anime or hate on amvs.
It's just about now people keep reading the same post about "What makes a good video"? I hear all sorts of answers from the concepts and the effects. U see 1 person saying about concepts, mood, and ect. While the other Person is saying about the effects and originality. Then the 3rd person comes in says u need one of this of what the 1st person said and what the 2nd person said.
Before you know it your confused, ur doubting your ability.
and Finally, the effects.
I used to be against them til I grew more neutral about concepts myself. If your video even so has a theme on what it focuses on it's satisfying enough. Just as long someone knew what they just watched is more satisfying.
It's simply called change, but not exactly something thats taking over.
AMV was created without a definition than what we just saw on the very first amv, Why can't anyone live with that?