Earlier quoted context omitted.
I'm really curious. What about reading this article made you think of Elling and what you refer to as "mentally challenged folk"? Maybe I'm missing something (I haven't seen the movie, but from the imdb link you posted, no mention of autism)... but it seems to me like you're saying "having autism = being mentally challenged". Am I misinterpreting? I hope so :(
Some people with autism are severely mentally retarded. In fact, classic Kanner's syndrome (the original autism) generally also means severe mental retardation. Other people are labeled "high functioning autistic" (also called "Asperger's Syndrome") and can be very intelligent but have some challenges in areas like social skills. Still, most their social difficulties are, essentially, a form of being mentally challen…
I'm an Aspie and don't consider my social deficiencies to be a form of being mentally challenged. I just see my brain as being wired differently than others. I excel at some things my husband is terrible at. He excels at other things I'm terrible at. It doesn't make sense to arbitrarily assign me with the mentally challenged label in that context. In protest, I reject the label :) If we met, you probably wouldn't even know I was an Aspie. I've been told I don't "look like" someone with autism. I don't know what that means, but I'm pretty sure it has to do with stereotyping and labels.
I also say "autistic". I don't care if Jenny McCarthy thinks it sounds like I'm calling myself cancer. Even if she is hot ;)
I'm not saying you're guilty of this, but for many of us (Aspies, Auties) it feels like other people label us and we're not allowed to even engage in a discussion about our own label.