It really seems to be an either/or debate. I've run across "support" groups that are insane cry sessions, with vicious mean streaks. Someone came here promoting their own (parent) site that is "autistic positive" but their discussions about their husbands (who are probably aspie) were outrageous and mean.
In "real life" it's just as discouraging. Curebies are self-labelled as "parents who will do anything to help their child". So, by definition anyone who doesn't agree is "someone who won't do anything to help their child".
I described Getting the Truth Out website to a parent who was enraged. She said she didn't have time to worry about being poltically correct, if people were gonna be ungrateful, then she didn't need to "help" them. (her own son doesn't speak so he can't complain)