That's what also needs t be changed...
McGratification isn't going to work with something like a several thousand year old religion. It may take a thousand years to completely reform Islam into a palatable spiritual outlet for its adherents. It took Christianity at least half a millennia to undo what it had evolved into.
Creating political will to endure suffering and participate in a struggle that ensures death to your side is not an easy sell anymore.
In WWI it was relatively easy:
But let's not kid ourselves, there were just as many anti-war folks opposing our efforts in WWI and WWII as there are folks opposing our efforts in Iraq today - they just didn't have anywhere near the soapbox.