It would be a very good thing indeed if Saddam were to pack his bags and leave with all his entourage. But that wasn't going to happen.

However there was a possibility of him getting rid of whatever Weapons of Mass Destruction he had, and making sure he did this was what it was all supposed to be about, not about removing him from power. The inspection and disarmament process was not allowed to run its course.

It's all a case of deciding which is the better of two bad options. I think the choice which was made was the wrong one, the one which overall is likely to have the worse outcome. However, since we can't observe two versions of history, we can never tell for sure which is right. People are still arguing about whether going to war against the Kaiser in 1914 was the right or the wrong thing to do.