I'm gonna take a wild stab. Muslims?
Without exaggeration, anyone in this day who doesn't fully recognize the disease that is Islam is either ignorant to a frightful degree or full-on mentally ill.
Everywhere. EVERYWHERE there are concentrations of Muslims, there is chaos, intolerance, violence ...
The thinking that is formed when Islam is followed is toxic, savage and intolerant. That not all Muslims commit acts of terror, in the traditional sense, matters not.
Ask any so-called "moderate" what he thinks of Sharia. If the law of the (non-Muslim) lands trumps it.