You don't need an expert to see what Revelation is about. The fact that the Whore of Babylon is dressed in purple is a pretty good indication that its a metaphor for Rome, who at that point persecuted Christians.
There are right wing Christians in America who think that nuclear war in the middle east which destroys Jerusalem would herald the return of Christ, but you don't need to know much about politics to see that these people are the wrong side of insane.
The Whore of Babylon is dressed in purple is actually not the only indication, but it's the most known and direct one. Besides, even National Geographic gives into "wild speculation" documentaries sometimes, not unlike the History Channel.
Well right wing beliefs are per definition a few sandwiches short of a pic-nic.