Well, you can't let the crazies decide how we run things over here, our values are better than their values and that will be the deciding factor in the long run.
Read this article, it's really good. The crazy fuckers are executing people all the time for stupid stuff, there is no way they can last, especially when they think these are the end times and they are playing out the end game as the army of god.
http://www.theatlantic.com/magazine/archive/2015/03/what-isis-really-wants/384980/