I'm skeptical. Did Christianity implode because Muslims conquered most of the places in the Old and New Testaments? Did Judaism die out because "Next Year in Jerusalem" was nothing but a daydream, after the Roman conquest, until the re-establishment of the state of Israel in 1948?
Judaism had a generational homesickness for a place that still exists to this day.
Christianity lives in the heart, islam REQUIRES a pilgrimage to mecca as one of the 5 pillars of islam.
Perhaps islam can survive mecca becoming a desolation like Damascus will, perhaps not.
I say let’s run the test.
Doing nothing certainly isn’t helping us any...