My aunty used to work with children wiuth disabilities. I don't think I ever could, I'm not against disabled people but it would just be so sad being around them all the time. Having said that, most of them hate for you to feel sorry for them.

Autistic children are normally really gifted in one area, but lack knowledge in others. the most common case is being very gifted in maths. I know an autistic person who could tell you any sum in a batter of seconds, just ask him 546 X 812 and he could do it like that *clicks fingers*

It must be hard to work with people like that, but I admire the people who do, especially those who do it as volountary work.

It's not necessarily true that autistic children are really gifted in one area, but lack knowledge in others.
It's a filtering issue actually. Some never show a super knack for any one thing at all.
One thing I hated when my daughter was younger ( and the closest anyone had to autistic education was the movie "Rain Man") was when people would ask what her special talent was.
Special talent? Does brute ogre strength because her pain receptors are twacked out count? At age three she tore the door off our microwave. Does that count? No. It does not. Does the ability to eat deoderant with zest because she is looking for a taste ( oral associated) stimulus count? I highly doubt it. LOL!
I'm not saying that there are not some exceptionally gifted autistic people out there. I'm just trying to burn that myth that while some may interact well with others and some may drool on themselves ( SEVERE cases here people) not all of them have some special talent that raises their bar to idiot savant.
If you get rid of the label itself and get past some of the behaviours what you have beneath that is a person with feelings, hopes and dreams. Not a super talent waiting to be discovered.

I truly sympathize, Grace. My son has been lucky to have some really good teachers helping him learn in spite of his autism.

By all means bring in as many autism knowledgeble people to help you and your son as you feel you need. Just be aware that for all you do you may not get things straightened out right now, or even in time to help your son this school year (and if there's serious resistance, next year). But if you keep prodding at this problem and maintain your documentation you may get some attitudes adjusted in time for another kid and parent about to go through the same system.
And when he changes schools, as he will eventually, you'll have a true record of his problems for his next teacher.