If Iraq truly cares about stability, they should just forget about the past, mend relations between the two, and just move on. Iraq in essence is an artificial nation created by the Sykes-Picot agreement, so if it has any interest on existing, it must be harmonious in this aspect. Just because the Sunnis are guilty doesn't mean the Shi'a have a right to revenge.

I do support Kurdish independence. They deserve it. This Kurdish separatist movement can go on peacefully. Iraq is an artificial nation, so if an entirely different ethnic group other than Arabic lives in the north, genocided by Saddam and oppressed until recently, they have every single reason to be independent if they so wish.