Very well said. This is sooo not helping the image of Muslims... They need to create a groupe that calls their own people out against such barbaric and savage displays. Shit like that makes it real easy to hate them.
IMHO, the problem is NOT the group. The problem is the envionment which allows this group to exist and function.
You could put a US gang into syria and yes, they'd be just as lawless and corrupt and murderous and profitable - because they're in a place where they're allowed to do that.
You could put ISIS into the USA, and very quickly, they'd realize they're no longer in a lawless environment where they can do this kind of stuff. Heroes, crimestoppers, and titty bars, they'd lose momentum quickly.
Everyone focuses on the bad groups that come out of these places, over and over... and we keep treating the "symptoms", IE: killing terror groups. They're always replaced by another one, just as a leaky toilet will continually pour shit/piss water all over the bathroom floor. You can keep mopping the floor, or you can go fix the darn toilet. In this case, that means taking over the govt, democratizing the place, plugging in our puppet leaders, sending them Mcdonalds and Syrian Idol and DLB selfie-taking, and voila, their angry youth are too busy liking whore selfies to blow stuff up.
I mean, it's not even the religion, to be honest. it's a lawless, corrupt country. they'd be killing and kidnapping no matter what their book says. When there is no law, and no incentive to turn in bad guys, and no national gun ownership and sense of "don't try this shit on my block", then what you see is what will happen.
IMO, stop focusing on this group of bad guys or that. Stop focusing on this religious passage or that. Focus more upon plugging in some cool leaders, giving them fun tv shows and porn, lots of adderall, and apple devices, and in 20 years the next generation will be a bunch of self-involved, gun-happy little snitches (like we have in USA) that will just not tolerate any disruptive element of bad guys doing violent shit, if only because it might disrupt their wifi connection.