After the Kurds severely weakened ISIS and greatly reduced their territorial holdings the others jumped in to finish off ISIS

To suffer. The mullahs helped defeat the Sunni ISIS because it was a survival war. Iraq will never be allowed to become like a normal country since the mullahs will be interfering in every aspect of it. Saddam kept Iraq together by controlling the Shias under knife. Now, The Shias are returning that favor and unless you break up Iraq into 3 countries then there will always be problems. Shias must take their share. Sunnis and Kurds must take theirs. That is the only way to stop the killing there.

Iraq is playing a dangerous game by siding with Iran's based militias. What they don't realise is Iran's want Iraq to be under their yoke. This a political suicide by the Iraqi leadership.