I've heard some of the exotic end-times stuff on the radio. So? There is a current of that. It ranges all over the place and sometimes isn't pretty. However, widespread hard-core ignorance? No way. To get to that conclusion, I suppose you have to (absurdly) conflate "fundamentalism" with cultural advocacy impulses like the pushes to restrict abortion, avert a radical state-mandated (judicially mandated) culture-altering redefinition of marriage, and develop ethical guidelines around stem-cell research that draw on moral reasoning.
In my opinion, you have to be a close-minded hard-core secularist not to see the seriousness of the positions I just listed.
Neither a hard-core secularist nor cleric am I. Rather, I prefer rational discussions and a resolution based on sensible accommodation vis-a-vis' ideology.