Sadly, the proponents of this flawed interpretation seem to prefer their imagined violent Jesus of the future over the nonviolent Jesus of the Gospels. At a basic level they essentially see the Bible like this: After a long trajectory away from the divine violence of the Old Testament culminating in Jesus renouncing violence and calling his followers to love their enemies, the Bible in its final pages abandons a vision of peace and nonviolence as ultimately unworkable and closes with the most vicious portrayal of divine violence in all of Scripture.
In this reading of Revelation, the way of peace and love which Jesus preached during his life and endorsed in his death, is rejected for the worn-out way of war and violence. When we literalize the militant images of Revelation we arrive at this conclusion: In the end even Jesus gives up on love and resorts to violence. Tragically, those who refuse to embrace the way of peace taught by Jesus use the symbolic war of Revelation 19 to silence the Sermon on the Mount.
This kind of hermeneutic has disastrous implications; it mutes Jesus’ message of peace and forgiveness. When we literalize the ironic and symbolic images employed by John of Patmos, we illegitimately use Revelation to give license for our own hellish violence. We reason, if Jesus is going to kill two hundred million people upon his return, what does it matter if we kill one hundred thousand people at Hiroshima?