A pastor of mine once talked about this in context of Martin Luther and Zwingli ( in context of the Kappel Wars ), and talked about how violence is often the moral outgrowth of those who have grown so assured of their righteousness (in a Christian context) that they felt they could not sin by committing violence. He pointed to Matthew 5:21-26 and 5:38-47 (The Sermon on the Mount) to bolster his argument against viole…
I like that.
This idea is also present in Buddhism, though they take it a step further and say that all suffering (everything from external violence to internal dissatisfaction with life) is caused by some form of judgment. They say the same thing that you mentioned above: violence is caused by the judgment, "I am right, you are wrong".