Why do people like screamo?

It's not even real metal. The vocals are whiny high pitched.. Screams? And even when they try to mix metal in with it, its just embarassing. And the singing sounds like a mopey emo kid. It never will be able to stand next to bands like Funeral Mist, Marduk, Torture Killer, Six Feet Under, Rotting Christ, and other great Black Metal and Death Metal bands. Why are those fake vocals even classified as vocals at all?