Fundamentalism (n.) is dangerous not because it poses a threat to secular scientific knowledge, but (paradoxically) because it poses a threat to authentic belief itself (belief in human rights, etc.).
Fundamentalism (n.) is guided by an effort to reintroduce the 'spirit of sacrifice' into the excessive narcissistic hedonism of contemporary secular culture.
Fundamentalism (n.) is not about belief, in fact, the fundamentalist poses a threat to authentic belief: He stands for knowledge and dogma. It is rather the secular humanist who stand for belief, a groundless belief in human rights, etc.
Fundamentalism (n.) is paradoxically characterized by the absence of belief, in the proper sense of the term. The groundless decision (uncoupled from any chain of reason or positive knowledge) that is at the root of 'belief' is unthinkable to the fundamentalist.
Fundamentalism (n.) is the result of western european intervention run amok and as such, in this case, the evil dwells in the gaze that perceives it.