If ISIL is an insult to Islam, why are there no riots in the streets?

Neil Stevens:

Again and again we are told that when Islam or its prophet Mahomet are treated unfairly or insulted, the streets in the Islamic world will erupt in rioting. They rioted in Benghazi over Danish cartoons published in a newspaper. They allegedly rioted over a Youtube video exposing Islam’s history. And yes,they rioted over Charlie Hebdo.

So where are the riots against the Islamic State?

Think about it: what could be a greater insult to Islam than to put up a state, call it the Islamic state, and then perform every form of barbaric butchery, every crime against humanity, and every form of evil you could possibly imagine? The existence and naming of the Islamic State should be the greatest libel of Islam anyone has perpetrated in this century.

These savages in charge of the Islamic State are acting more like wild animals than people, and they drape themselves in the shahada, the Islamic statement of faith, going as far as to put it on their flag. They are doing everything they can to associate their crimes with Islam. And yet the Islamic Street is silent.
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There are two possible conclusions for why this dog is not barking.  The people don't see it as an insult to Islam, or they are intimidate by the actions of the religious bigots.   Both should be important considerations in how the US deals with the Islamic street tantrums and with the head choppers.