Autism is a neurological disorder. It's not caused by bad parenting. It's caused by you know abnormal development in the brain. The emotional circuits in the brain are abnormal. And there also are differences in the white matter which is the brain's computer cables that hook up the different brain departments.
Science cannot tell theology how to construct a doctrine of creation but you can't construct a doctrine of creation without taking account of the age of the universe and the evolutionary character of cosmic history.