In that link are some cases of Muslims *acting* to stop it (unless I'm confusing it with several others I had open about the same topic). I already admitted it isn't enough, but the constant narrative that Muslims aren't calling out their own extremists is false. There are virtually no religions that are effective at *doing* anything to stop their own extremists.
How many religions are you aware of that contribute to terrorism in this day and time more than the muslim faith? An honest question.