I think that he really does have a problem with people with disabilities, physical or mental.
His attitude about the veterans and his public Special Olympic comment suggests that might truly have an issue with people who are disabled. I think that there is a name for that sort of aversion or perhaps it is even a phobia for him. His overpreening and attention to his physical appearance would further emphasize this sort of aversion.
He has a bully attitude and my guess is that he has honed it well over the years by being cruel to those whom he found inferior.
Reading your post I suddenly had a questionable thought.
I wonder if 'chelle had an abortion because the fetus was not perfect. Maybe this is why they attack Gov Palin because she now has a perfect blessing.
One day Obama may have to eat his words.
God is just.