There's a definite overdiagnosis of male autism...
That's what I was thinking as well. The stats I found has the rate at 1 in 42 for males and 1 in 189 for females. I can believe the female rate, but it's the male rate that seems wildly high. No one seems to have a legitimate medical reason as to why the rate has been climbing so much in recent years (and I don't want to hear anything about the debunked and absurdly stupid notion that the cause is vaccines).
As already mentioned, it is indeed the new ADHD. My dad even admitted that the way he was in elementary school would have almost assuredly been diagnosed as such. I think many diagnosed cases of that are just boredom.