And you think that your next door neighbor businessman that is a Muslim will all of a sudden strap on a suicide belt if Mecca is bombed? You also seem to hold "moderate" Muslims in low regard if you think they are that easily incited.
A few very may well for all I know. It would definitely cause Muslims here to reconsider their relationship to their religion and their country, if only momentarily; in their mind they're Muslim, and they're living in a country that just unquestionably declared war on all of Islam by needlessly wiping out the place they direct their prayers to. I tend to think that would make some of them snap and hand them over to anti-Americanism, if not pro-Islamofascism.
But the real deal would be in the Middle East itself. A Westernized Muslim may resist, but what kind of unnecessary propaganda tool would the Islamofascists be armed with there, where they could have control of the next generation's minds?