The thing I'm curious about is if this is due to the actual development inside fat, the fact that they put no effort into their child rearing (ie, just plop them in front of a TV, never speak to them, only yell at them), or that they get a shitty stomach microbiota when developing because of the bacterial exposure to such gross parents (some gut biota give off bipeoducts that are seen in higher volumes in autistic children). But I bet it's a mix of all three. My nephews are an unfortunate example.