Schizophrenia is the price we pay for minds poised near the edge of a cliff

This is not unreasonable.

It could be less awful if the voices were positive and not harsh and negative. Schizophrenics outside the US were found to have a more benign relationship with their voices.

    The striking difference was that while many of the African
    and Indian subjects registered predominantly positive experiences
    with their voices, not one American did. Rather, the U.S. subjects
    were more likely to report experiences as violent and hateful – and
    evidence of a sick condition.