No one has asked you to. You're not the "decider." But when we ejected Iraq from Kuwait; the UN was indeed involved and we are the leader of the free world and basically the ONLY nation capable of enforcing UN resolutions.
Perhaps you like the idea of despots, tyrants and terrorists getting away with shit; but sensible sane head believe that you beat them by actually doing something.
Again, your memory is lacking because you pretend that the devastating events of 9-11 never had an effect on our views back then. I remember. We realized that complacency, and doing nothing didn not make us secure. In fact, it exposed us to being the victims on 9-11. I don't think ANYONE with half a brain would want to go through that again.
Security and freedom do actually come at a cost. Unfortunately, many in the US allow the media to shape their mistaken opinions that it can be secured with no cost at all. That is dumb.
Obama's election victory had NOTHING to do with Iraq. If that were true, Kerry would have been his predecessor and not Bush II.
Obama won by a wide margin because Bush was incorrectly blamed for the massive recession that hit in 2008. Nothing more.