Actually the modern Church building is still there—ISIS just removed the crosses (and did who know what other vandalism).
The ancient tomb is what was destroyed—with much historical value. Fanatical Muslims seem to hate tombs, for some reason. They destroyed the biblical prophet Jonah’s tomb in Nineveh too.
Back in the 1920s fanatical Muslims in Saudi Arabia destroyed the tombs of Mohammed’s relatives too....and of course a Caliph in the AD 1000s tried to destroy Jesus’ tomb (empty though it is...) in Jerusalem.
I was going to ask: the landscape on the photo you posted did not match.
When people leave or a killed, -- the church is destroyed, whether the walls stand or not. Thank you for the clarification though.