You're still doing the playground stuff, Old Guy. It just distracts from the argument and is taken as a reason for other people to come back in the same way. If that's the best you can do...
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Iraq being split into three parts - it may come to that. If it does though, it won't be any kind of "victory", just the very bad best of a very very bad job.

Iraq is an artificial country. So was Yugoslavia. So is the USA. So are many other countries. In many/most of these countries there have been times when the differences have led to massive killing and division, permanent or temporary, into separate warring parts. I am sure there have been people who would have said in all these cases that this demonstrated that "the people are not capable of handling freedom and democracy".

The big problem with separation in Iraq (as was the case in Yugoslavia) is that millions of people live in areas which are mixed in together. This is particularly the case for Sunnis and Shias in central Iraq, including Baghdad. Massive "ethnic cleansing", with all its horrors, is almost inevitable.

So far as the Kurds are concerned there is also the problem that neighbours, especially Turkey are going to be wholly opposed to the setting up of an independent Kurdistan, because of the likely impact on their own Kurdish population. Military action by Turkey against an independent Iraqi Kurdistan is a very real possibility

It's a mess. It's a mess that has been made vastly worse by the invasion and by the way things were handled in the wake of the invasion.