Not all Christians are into that stuff. Of those who are, the noise they make is far out of proportion with their numbers. They are usually called "millennialists," and no matter how you slice it, they're a cult. The core of their beliefs is not centered arounds Jesus' teachings, but around wild-eyed attempts to interpret the Book of Revelations, which, if put into historical context, is a polemic against Roman occupation. FOr example, the Number of the Beast (666), in a school of numerology popular at that time, refers, not to some sort of spiritual Evil such as Satan or the Anti-Christ -- it refers to the Roman Emperor, specifically, Nero. The Zealots were gung-ho on driving the Romans out, and the Book of Revelations is a Zealot political tract written in metaphor. Why it's included in the Bible at all is the real mystery.(Strike me with lightning, somebody)
Main-stream Christian churches (Lutheran, Methodist, Episcopal, etc.) tend to distance themselves from this bunch.
Don Firth