In what way am I trying to demonize the mentally ill? If unprovoked aggression is not a sign of mental issues then the definition needs to change. What is your definition?
A mental deficiency that makes it difficult for someone to participate in society. Not by choice. Criminal behaviour is often a choice.
It doesn't really make it hard to participate in society. Mental deficiencies are not a choice. One reason to break the law is not caring about the law.
Yes, they are two separate classifications. You can be a bad person without any mental illness. It is more common to be a bad person and same then a bad person with a mental illness.
So evil vs insane? How do you tell the difference between a person doing evil deeds because he is evil and a person doing evil deeds because he is insane?
You're just repeating the classification. I'm asking how do you tell the difference? People don't have labels on them displaying their mental classification.