I watched South Park ages ago for awhile. Back when it first aired, it was much like the sitcom Married With Children, i.e., it was rudely different, so it became very popular.
With this particular kid, I just find his speech entertaining re his delivery. And I also find it interesting that he says the word "ginger" is offensive, yet later on he calls himself a ginger. He also says, yes, he has red hair, and he's "not proud of it", yet later he professes how proud he is of his red hair. Obviously he has mixed feelings and we should all hope he doesn't do a Columbine. He could also just dye or bleach his hair if the teasing is THAT bad. I think maybe when he gets older and into high school all the South Park immature jokes towards him will probably go away. Until then, personally if I was a counselor or teacher at his school, I'd encourage him to take Drama classes, as he is hilarious.