For the most part they can all coexist in life together, but every once in awhile you run into a person who for what ever reason chooses to be a rogue, one who is so lacking in people skills they place blame on anyone but themselves, they hide behind a veil of delusions often seeking methods of false security. They join the pity train and ride it to the end of the route. These types of people are a sad bunch in my opinion. Life is to short to dwell on past experiences, moving forward welcoming the next challenge in life is the normal sequence of events. People who assist a delusional person feeding their sickness are just as warped. This displays a total codependent behavior and puts them in the same category.
It just never ceases to amaze me at what great lengths some people will go to and accomplish nothing, the end result is failure.