To observe is neither to recommend nor to justify.
The West has the troops, the ordnance, and the power to make it happen. It does not have the will. This is a terrible danger for Muslims: Sufficient provocation could provide the people of the West with the will to make it happen.
You are right. Making the attempt would be the worst thing that could happen to the West. However, it is possible that the West could be forced to take action that would result in the overwhelming conquest of the Muslim world and ultimately the eradication of Islam.
Ordnance, yes: troops and power, no.
We could win the battles, but the occupation would bleed us to death.