Xenophobe: You hate because you have been fatally shot. Your body rose from the dead but dead in spirit and seeking revenge. You spread the message of hate through your words and actions, inciting fear and motivating further hate. It doesn't matter that they hate you; at least you have made them feel the wrath that you feel.
Anti-xenophobe: You hate because you have been fatally shot. You seek revenge and call it justice, not caring if the killers die in the process. Dehumanizing the enemy, you provoke him to dehumanize you. It doesn't matter that hate is multiplied in the world; at least you have made them feel the brunt of justice.
Ex-convict: Released from jail having been taught long months or years of "justice", you go out into the world to spread the good word about this so-called justice. They thought punishment will make you good, so you think punishment will make everyone else good, too.
Replace the two characters with whatever us-versus-them you want. It's a positive feedback loop that fools the players into thinking it's a negative feedback loop. Each party expects the other party to give in, but instead, the conflict just escalates.
Forgive them, Father, for they know not what they do. I see the results of hate, whatever sneaky form it takes, and I turn away from spreading it. I teach you peace by being peaceful despite having been apparently tortured. I say "apparent" because torture requires conscious intent, and my violators were not conscious.
