Some observations:
We went to topple a state sponsor of terrorism because its easier to choke-off the logistics than stop the individual terrorists. The AUMF cites Saddam's support of terrorism 3 times as often as it mentions WMDs.
The Proglodytes didn't foresee anything. They blared out continuously that Saddam had nothing to do with Al Qaeda and vice versa. The insurgency flared-up as the US was finishing off the last of the Ba'athists. The insurgency came from AQ.
ISIS is an AQ off-shoot.
When ISIS was merely ISI they were funneling men and weapons into Iraq via Syria. When ISI was defeated in Iraq they turned on Syria.
Now ISIS is spreading back into Iraq.
Correct me if I'm wrong but every criticism of US foreign policy in Central and South America revolves around the US realpolitik support of hardliners. Now they are telling us if Saddam was still in power things would be golden.
They dread going into Iraq and curse the "chickenhawks" but they sure were hot and heavy to go into Nigeria after Boko Haram. I guess some races and genders aren't worth saving from Islamic terrorism.
We keep hearing this is about stealing foreign oil but they insist we not harvest our domestic supplies.
Huh?
The UN.
The Proglodytes will tell you Resolution 1441 was not legit because Putin and Chirac said it wasn't. IOW: the US is powerless unless the UN and corrupt foreign governments give their blessings.