A bit, yeah from what I saw at school and from what redheads have told me. Common digs about hair colour and I imagine that South Park episode didn't help.

Difficult for me to say cos I'm not a redhead of course. It also might be a bit different over here cos of course associations with red hair/Gaelic countries blurs the line between being nasty to redheads and the low level background racism always present against the Scottish and Irish.