nobody created ISIS
ISIS is just arab nature
Before it was the talibans then Before that it was something else etc.
Right on!
The folks in this part of the world have exhibited the same aggressive behavior for centuries. The Middle East, like Africa, are and have always been populated with warring tribes. If American Indians hadn't been suppressed or almost made extinct by settlers/immigrants. Their respective tribes would likely still be warring against one another.
To be honest, it is also human nature at play. Look at the U.S. our different cultures are frequently at odds. We are just a step away from being just like the Middle East in this respect.
People unify when there is a treat from something greater than them.