Flat out false again. History amply demonstrates the orgy of violence you see is what is artificial. It never occurred on this scale before. Not under Saddam, not under Qasim, not under the Faisals, not under the British. Not under the Ottomans, not under the Caliphate.
The idea that this is somehow their "natural state" is offensive and ridiculous. It's not. The current violence is strictly a consequence of the machinations of ourselves, Iran, Wahhabi extremist, deposed Baathist party members, etc. Consequently it can also be resolved by those parties, namely the defeat of/compromise with them.