France has already decided. The French people must go to war against the Saracens and against the government. Were it yet a Christian nation, they would have a reason and a will to fight that war and sin it. They are not and really have not any reason to disrupt their lives to change a situation that is not so terrible at the moment. Loss of religion brings with it loss of any sense of dichotomy between Good and Evil. Everything but a little less unpleasant than what went immediately before and at no point is it worth it to fight. The ultimate end is not a consideration, only what it is like right now compared to the effort to make it different.