Bummed Out on Negative Personal Narratives

I am really tired of being expected to sympathetically listen to other people as they emotionally spew out their very personal hyperjudgemental rancor about others. I don't know how to change this: these people seem totally focused on the negative aspects of certain relationships they have and tenaciously refuse to consider the bigger, more complete picture that includes the positive. I have come to the conclusion that this negativity is at best a form of manipulation of me as a hostage listener and is at worst a psychological disorder, with negative feelings and their open expression feeding on themselves and demanding more and more.

This isn't just one person, either. I see it all around me in various settings. It tends to make me more susceptible to spiritual feelings only in the sense that it appears that demons have a hold on these very negative people. All I want to do when around them is escape.

I am 54. That isn't young. I would like to look forward to my remaining future years as a time of happiness, health and positive relationships. But not around these people, the way they currently are! It matters not what shortcomings they see in others: I have only one option, which is to tune them out...