Philippa said what I was trying to say.
I was involved in politics for a couple of years. I put a lot of my anger into it...for a good cause mind you.
But I learned something from the experience. This was at a large university and we were engaged in a nationwide movement. On our campus, there were a number of groups involved, with diverse interests. Some were very good at setting their particular interests aside for the benefit of the cause; others not so much. What I learned was that there were a particular bunch of people that were so angry that the particular cause was nothing other than an excuse to vent their rage. I was once in a discussion where a couple of them wanted to start a bunch of tires on fire on the campus as a form of symbolic protest. Yes, that would have been symbolic alright, symbolic of much worse to come and very much the wrong message. Thankfully, it never happened.
I began to feel that the expression of rage is so consuming that they could attach themselves to just about any social or political movement, as long is it offered an opportunity to throw a rock or burn something. Put them in a different place and time and they could be wearing swastikas. Change it again and they could be communist revolutionaries. They didn't really believe in anything, just wanted to express the rage.