blaming Neanderthals for most things is a gross over-simplification and misdirects reader's attention towards genetics. While there is some humour to it, I would be cautious of giving into unwarranted fixation towards genetics, as we no longer live in the world where it needs to be defended against Lamarckism and like.

I posit that the "runtime environment" i.e. epigentics, among other things, has a far traceable cause than the smidge of related species. The nature and consequences of autism land me to believe that it's more likely a consequence of a compiler error, although shoddy source code could be a secondary/compounding cause for it. Take Down's Syndrome as an prime example of genetic disorder, and it becomes clear why such categorization does not work for autism: autism is too broad, it describes the effect rather than cause, and I'd argue that autism is far less debilitating (pronounced) and definitely not inherited.