This is not about Islam or Christianity or Judaism or even capitalism versus communitarianism, but their angriest and most vehement branches. If our enlightenment "wins," there will be Islam in the future and everything else. But the fuming tenor of zero-sum machismo will be gone. Those who today preach hatred will live, but not their hate. Moreover, they know this. And because hatred is addictive, like a drug, that is the wellspring of their fury.
At an international conference in Mexico a few years ago, Richard Dawkins, having expounded at length on how sexual natural selection explains life on Earth without any need for a "creator," went on to say, "And I am sure that something like the principle of natural selection operates in the physical universe as well." Sounds totally silly? Well, there's more to it: a huge irony.