Yes, I did say revenge politics.
Over the years, I have noticed ranging from race, LGBT, animal rights, feminism, and Muslims, they are driven by extreme revenge. Revenge at injustices they perceive all day all night as long as they live. All the grudges they nestled for all their life. Indoctrinated to feel like a victim. All the same things, injustice collecting or grudge holding. They range from removing anything Confederate flag, riots, anti-hunting, to gay marriage. It is revenge against injustices they always sense as they see everything as racist, homophobic, Islamophobic, sexist, etc.
To be a leftist, you have to be bitter and paranoid. They have to be consumed by extreme hatred and rage at the world they see as unjust. They have a lot of repressed anger. They have to be envious and resentful of others. They are never happy no matter what. Even if the Supreme Court ruled in favor of gay marriage or Obamacare. Even if we removed all American and Confederate symbols, they still will be angry and vengeful no matter what. They will never be pleased no matter what. In fact, it will only intensify their resentment.
They are always unhappy no matter what. They want everyone else to be unhappy because they want the world feel their never ending wrath at a world they view as cruel to them. Their unhappiness and bitterness is self-inflicted because they want to feel victimized no matter what. Victimhood is what they strive for because it garners sympathy. They are a perpetual victim as it is a vicious cycle.
They are envious of others who are successful because they feel so entitled to it. When they see others are doing well, but not them, they feel cruel injustices have been inflicted on them. That makes them feel that wealth should be redistributed so they do not have to feel envy. Yet, no matter what, they are always envious because they are always resentful. The envy fuels their extreme sense of injustices and grudges they have. It is always "Why me?" for them.
When it comes to interaction with each other, there is deep distrust with each other despite sharing common ideology or identity even if they totally agree with each other. They may tolerate each other, but if one disagrees with them slightly, they are viewed as heretics, apostates, self-haters, traitors, etc. They are seen as not conforming and are treated as enemies. They have a pathological need for enemies to thrive.
Liberalism/Fascism/Nazism/Communism are politics of revenge against injustices they always obsess about. Islamists are driven by revenge as it is part of their culture nurtured by religion. Everything to them is injustices that accumulate over time. They are all about sense of injustices.