[ThrowawayP]

> "In fact, I hope and believe the majority of mental illness cases are not serious."

Then your understanding of mental illness is very poor. For example, from Wikipedia, "In 2015, ... [suicide] was the second leading cause of death for young people aged 15 to 34 and the third leading cause of death for those between the ages of 10 and 14." And, in comparison to treatments for common cancers, the successful treatment rate for many common mental illnesses is often quite low.