Autism is one of the things where people used to be labelled backwards or retarded etc.
It's a very real thing and, because of it's varying degrees, It can be very complicated to diagnose and understand.
So far as autistics go, I think my cousin is one of the lucky ones - he's a high functioning autistic with asbergers.
He's very intelligent but, he's absolutely shit at building any social relationships.
Some have it a lot more severe. It's no one's fault - shit just sometimes happens.
finally an educated answer