9/11 and jihad terror has very little do with Israel. This is an explanation western thinkers have drifted to because it fits how a modern western terrorist would operate and think. In this way we feel that if we solve Israel, then the attacks will stop, but that is unlikely.  The phenomena is much deeper than that.
http://nationalinterest.org/feature/realism-islamism-islam-when-will-difficult-conversations-21052