Iraq has always been a “radical” nation. Saddam kept that radicalism in check with an iron fist. Now that he is gone, Christian churches are not tolerated. I could post you article after article about Christian churches being burned/vandalized and Christians fleeing to other countries.
Just because Allawi and his ilk have control does not necessarily mean stability for the minorities in Iraq.
This article and your contention is about the iran-ization of Iraq. Not minority persecution by jihadis. Speaking of minorities, you think the Iraqi Kurds are going to accept the ravings of Mad Mahmoud in Iran?