You appear to not know how central the destruction of Mecca is to the moslem apocalypse.
So the islamics have an apocalypse... That's a bad thing?
Wait until the annual pilgrimage, and then at the height of the ceremonies, carpet bomb that big ole' black rock and its environs with C-5 galaxy transports carrying pigs. :-)
WE wouldn't have destroyed Mecca. Just defiled it a little...
Cheers!