seriously ?
you have Arabs expending their ideology to Turkey ? do you ?
what 's the matter with "arabs" ??? that's nothing to do with being arab . if you mean groups like al qaida salafis or whatever,
they don't represent arabs
don't put ethnic in something which is not ethnic
In order to comprehend this chaos, you need to look at the socio-economic background of these events. Which is not purely ideological, neither economic nor ethnic... It has a bit from everything.
For example Sunni Arabs living in Syria and Iraq were oppressed by their governments. You might have seen that disadvantaged Sunni Arabs ruled by Shia governors live amongst ethnically not homogenous environment. From within came ISIS, later turned to IS.
It is deep discussion, we can talk about historical perspective of Sunni-Shia divide, or Turk-Kurd or Arab-Kurd rivalry. But we cant come into a understanding and our precious time would be wasted.
Current economic model wouldnt solve issues of modern Arab society. The difference between rich and poor can be easily observed in the internet age by arabs themselves.
Poor need means to find a way out. This ignites the war. They take up their arms and revolt against authority, i.e. Shia government. On the other hand, In Bahrain, in Yemen against Sunni governments. Sometimes against other ethnic groups whom they see traitors or opposing force, i.e. Kurds, Christians...
Once clashes start, those with strong ideologies create hope among youth, often drawing youth into their ranks. With such supra-national idelogies like Islamism, groups draw youth from all over the world. From USA to Indonesia.
This chaos is Partially ethnic issue, partially ideological, and partially economic. There is no clear line.
Iran is now fighting in the battlefields of Syria and Iraq. No longer covertly. Iranian soldiers are getting killed there. Saying Iran is unaffected by the war is no longer possible. Of course rich are unaffected, same as Alawites in Tartus.
Meanwhile growing discontent in Iranian society is being observed easily. We both know Iranian society is not strongly binded, but divided in ethnic lines.
That'd be a long war, Iran will be hit as well. With it, more KIA.