Hey there Camp.
I am a firm believer that the harlot city, babylon the great, in Rev 17 & 18 is earthly, carnal Jerusalem.
Rev 18:2 And he cried mightily with a strong voice, saying, Babylon the great is fallen, is fallen, and is become the habitation of devils, and the hold of every foul spirit, and a cage of every unclean and hateful bird.
Hateful against the Everlasting Covenant in Jesus Christ and His body.