Villages where there is a reluctance to register or cooperate should be advised that the village will be razed, destroyed after a certain date, and then carried out. LOL, and then what do you do with a village full of people who no longer have a place to live? You'd just create more problems than we have currently if you did that.
Also, what would you do to the commanders in the field who refused to carry out such an order? And there would be some who did. What would you do when the Senate impeached the President for acting in this manner? Again, that could happen as well.
If we want to act like Saddam himself, what was even the point of removing the man? What is the point to the whole thing if you simply become the thing you wanted to defeat?
What would happen if a President decided to use a nuclear weapon to save American lives? The end of world war II would happen.
If you ever had to fight off a drunk in a bar room would you just take a few punches and then negotiate and then after several more punches would you leave missing several teeth? No, a survivor hits hard a quick with a chair or cue stick first so he doesn't have to visit the dentist. The instigator must pay.