Your problem, Rhyfelwyr, is that your position starts weakly.

You start with
the Book of Revelation, which states that the Church of Rome is Babylon
(my emphasis) and then go on to draw biased conclusions from woolly metaphors. Since Revelation has long been included in the Catholic bible (usually worth remembering that there are many differing collections used as bibles) one would be tempted to think the Roman Catholic Church doesn't subscribe to your interpretation.

Finally, one wonders why it is important to have the Catholics "defend" their position against your interpretation.