Not sure how you can say that without seeing the kids. The people I know have kids that are quite obviously autistic. They aren’t bad parents and the kids are not undisciplined.
Im not saying there isnt an agenda. Just saying that blanket statements are unwarranted. Autism is far far different than ‘ADHD’.
I worked in a special ed preschool in a public school for awhile. We had one class exclusively for autistic children. ALL of those children were textbook, classic autistic.
In my classes (morning and afternoon), we had one child who was classically autistic whose parents didn't want him in the other program, 1 child with Down's Syndrome, 1 child with extreme physical and mental handicaps, about 5 kids who had something going on because normal discipline, firmness and consistency were ineffective, and maybe 8 kids who needed speech therapy.
The other 24 kids were all diagnosed with something (had to, in order to qualify for the program) but they seemed pretty normal to me.
There is a LOT of diagnosing going on, but from what I've seen, the autism diagnoses have been spot on.