Such a legitimate question, my friend!!! Because they tried at least once and concluded how lost of a cause it was with those troubled and eternally tormented souls!
Btw, I had no choice but to learn as much as I can about Personality Disorders! I am an abuse survivor and he was a malignant narcissist! I said it before and will repeat it again:
"When we beat you, you know the origin of your physical hurt, and that somebody mistreated you. When we abuse you sexually, you also do not doubt what you endured. Interestingly, when your perpetrator abuses you psychologically — especially in a subtle way, you aren’t able to tell what’s happening. Result? You start questioning your worth."
Here is a piece I wrote about the last episode of the story of my miserable life:
https://medium.com/genius-in-a-bottle/this-year-i-decided-not-to-celebrate-my-birthday-3b2f76828b46