I submit that we each have our own rapture, we each have our own tribulations. Revelation of John is apocalyptic literature, applicable to us with today’s problems, not merely telling of those people in some indefinite past or future.
Once upon a time it was the standard, that Revelation of John was used by Christians to buck up morale under persecution. Only when the Roman Empire became Christian under Constantine and his successors was it turned into prophecy, was Rome, the Whore of Babylon had to be sanitized, so that in the highly charged atmosphere of Byzantine/Roman religious politics, the Book of the Revelation of John could be kept in the canon, and not ruthlessly suppressed as was the Gospel of Peter.