Thank you for your for the primer on Islam. To answer your question about "what will happen once the muslims unite under the banner of islam", same thing what will happen when someone attaches a pair of ball to a grandma. We'll start calling her "grandfather". First you have to show the mechanism by which it will plausibly happen and mentioning Sykes Picot or someone hating hating it, doesn't cut it. And I do not see the Islamic state to be particularly successful either. The only reason it exists, is because paradoxically enough, lots of countries do not want it to be gone. For instance, Turkey want it to counterbalance the Kurds, Russia want it to fight the less radial rebels to relieve the pressure on Assad, Saudis want it to fight Hezbollah etc. Otherwise, it would be gone in not time. Once again, reading Koran and quoting the suras, means absolutely nothing when people who call themselves Muslims do not give a shit about them beyond whatever in their immediate self-interest. Same as the Christians and their favorite multiple choice book. And until that changes, you'll have no leg to stand on.