.....except alienate almost all the Muslims in the world.....
I think it would destroy the religion.
I think it would cause such unimagineable confusion that there would be suicides rather than retribution. Millions prostrate themselves facing Mecca to make prayers 5 times a day. Millions have the Haj obligation to visit Mecca.
If the place is gone and not rebuildable, If Allah has demonstrated his inability to prohibit the destruction, Allah has obviuosly abandoned his people. Abandonment leads to suicide.
Really? Remember what medieval Christians did to the "Christ-killers" in their midst. Then they did it again, 500 years later, in spades -- and the Jews hadn't given any real cause for offense, other than lending a little cash and doing well in business.