I don't know, from what I dimly understand, autism seems like brain asymmetry, schizophrenia seems like a chemical imbalance. I'm way more interested in what the causes are. I find it highly eyebrow raising, if it's true that researchers can't determine whether autism stems from a heredity factor, or an environmental factor. Or a combination? Or if it was always there naturally, but became more 'detectable,' when culture changed into stressing more efficiency/money chasing, and 'functionality,' which seems like are things that happened.
Because after all, not all these people behave badly to the point where something is obviously detectable, where intervention should occur. I think the vast majority are likely on the calmer side, but might fail to reach the very high productivity standards (which are culturally subjective) that a modern high-tech society wants