My uncle was schizophenic and my grandma broken by being blamed for it. In the ruthless power struggles that constitute academia mothers are easy targets. Looks like it wasn't only men who were involved in this grand theorising and blaming?
Functional adults are produced by a wide range of different parenting styles.
There may be comments here from people who are functional but not entirely happy with themselves and blame their mothers, fine if you want to do that but this has nothing to do with schizophrenia.