Thats kind of the core problem with extremism: you have to continually push the boundary and become more extreme, because the inherent social purity testing associated with the extremism means you're also constantly in-fighting and self consuming.
It's also why these things eventually burn out. They can't find new recruits from the outside, and the internally the people whom aren't "true to the cause" are either rejected or destroyed regardless of how long they've been there.
It's also why these things eventually burn out. They can't find new recruits from the outside, and the internally the people whom aren't "true to the cause" are either rejected or destroyed regardless of how long they've been there.