I'm not aware of any 'concern' over the Robertson's adopted son, and I live in their community. Unless you're speaking of the more general southern bible belt 'community', in which case I'm not going to argue that there isn't still inherent prejudice/racism through certain tenets of it.
Yeah, my 12 year old daughter was watching it and said, "Wow, that was rude. I thought she was a nice girl" And she probably is nice, but that made her seem a little snotty.