Consider the objectives of IS and evaluate them with an open mind.
Consider the society of the West and others that have and are adopting their principles.
Consider those society's and the manner in which they were first founded and then developed.
Not too much difference is there ?.
Incidentally...congratulations to the Yanks, they have just passed the law which allows same sex marriage, another step towards their eventual cultural demise, it's not bad enough already.
Comparisons will follow soon which might portray a CALIPHATE as not such a bad thing after all.
Once the scum has been cleared out.