It takes a lot of patience as well as stubborness to get any kind of child with Autism to speak, read or write. I should know, I was at that functioning level once. What broke me out of what most people call a "shell" was music. After then, a lot of pushing.

Yeah, those kins of people to use those comments, much less grade the quality of humans is rather sick themselves. That's my opinion, though.

All I can suggest for now is to stick with it and fight the good fight.