They believe in revolution because they see it as the only answer to the terrible problems of poverty and class inequities. To my mind, we all need to make compromises. Christians must be prepared to compromise on their way of life. Part of the answer is to look at our own belief system and question how it is perceived by the people we are labeling. And another part of the answer is to question precisely why we're labeling them.
Fundamentalism frequently grows out of a feeling of being ignored and despised.
It is often a call to arms by people worn down by years of oppression. We have to examine our role in wearing them down and in continuing their oppression, in not hearing their cries for help. When the Boer people trekked across southern Africa in their wagon trains, if they were attacked by the Zulu, they would form their wagons into a circle called a laager. They are visionaries, often escaping from some sort of hell. Just like the Lutherans and Pilgrims escaping religious persecution in Europe.