What other novels are there like Demons that depict ideological extremism? People who burn things in the name of righteousness and revolution.

I haven't read Demons yet, but it's next on my reading list, and I would like to ask for recommendations so that I can acquire and examine my other options beforehand. I'm simply looking for novels where people get frustrated due to idealism, these people will not be down to earth, they will be persistent, determined and egotistical, and set things on fire. Thanks!