Trying something new......
But that is not true. No one is saying it is "unfixable" although many may say that it cannot be "cured".
It is like this, I have learning disabilities. They where so bad when I was younger, that I was failing school miserably. they wanted to put me in a class by Gr. 4 that would teach me "life skills" like how to cook a meal, or run a washing machine so one day I could live an independent life! 
My mother put me into a private school for two years instead, and I learned how to COPE with my LD's, so well that by the end of High School I did not even use my "labels" and in College I did not either. I still have them though, just greatly minimized. I have to work 10 times harder to write a good report then the average person, I have to put a lot more energy into understanding new things, I still cannot spell at all reasonably without a spell checker my hand writing is so bad, many 3rd graders have nicer handwriting! It does not matter how many hours I dedicate to spelling or penmanship, I have plateaued, hit a wall that is just not scalable! Yes, I did improve, but I am not "cured".
My AS is like that too. I have made many improvements over the years, my son has improved by leaps and bounds too, but at the end of the day, I think I have come about as far as there is to go, and my son is nearing that point too. At some point you just have to accept who you are, and who your children are and be ok with that. I don't belong in an NT world although I can peacefully co exist beside it!
Some of what you are saying sounds like ABA or IBI therapy?
This would throw my 16 year old into a tail spin for sure. Confused, lonely, angry and struggling to just be ok, now tell him to take on the tremendous task of totally recreating himself to what the world thinks he should be.........I don't think so.
I am glad this worked well for you and I hope it doesn't backfire down the road and you end up suffering unknown depression for denying who you are.
I want my son to be who he is, not who others think he should be, that's the way God made him, who am I to change that? You can't "fix" what isn't broken, just different.