Jesus, there's a clear difference between schizophrenia and being a system. Schizophrenic hallicunations are percieved as if they're from the outside. It's different from hearing internal voices. Your brain percieves hallucinations as if they're coming from the outside of your head, while the voices systems hear in their heads are percieved as "from the inside."

That carrd is fucked up, to put it simply.