The ultimate goal is far beyond just booting Saddam. The ultimate goal is essentially change the face of the Middle East...to see the extremists and the unpredictable and the terror groups be removed from power and influence and replaced by moderate/progressive leadership that prefers civil, upfront, modern relations over aggressive, demonizing gamesmanship.
The model for this is post-WWII Europe and Japan under the Marshall Plan. The victors help rebuild the defeated society, break out the harmful (Nazi/fascist) elements, and show all the parties involved that peace and mutual respect can work and benefit everyone. In the Mid-East, you only have to look at nations like Kuwait, Jordan, or the UAE to see that it CAN work. But Iraq, Iran, Syria, and Palestine in particular are standing in the way. I think the Saudis are in the way a little bit, too, but that's a complex relationship under any circumstances.
But those who refuse to listen just won't get it.
