Why not? Our enemies love death, the more "martyrs" the better. They could care less. We will eventually use the leverage of what DOES matter to the worldwide islamofascist movement.
Mecca, Medina etc.
Putting them on the table for discussion as counter strike options may be the only way to force "moderate muslims" to confront the evil in their midst.
And if they still will not confront the evil in their midst, then that is an answer as to their true loyalty: to the global spread of islamofascism.
Mecca has to be on the table. It is not just a holy city but it is involved in two of the five pillars of Islam. Moslems kneel/bow/pray facing Mecca and ... are required to make a pilgrimage to that city if their situation permits it. Infidels are not allowed there.
If Islamic terrorism escalates to the point where dirty bombs or a single atomic bomb explodes in the U.S., then Mecca should not be destroyed but taken and held and changed into something off limits to Islam.