Looks like we did it as a favor to the Kurds, who systematically disenfranchised Assyrian and Chaldean Christian voters. This happened both here in the U.S. and in Iraq:
Iraq's Christians Disenfranchised at Home and in U.S.
And
"In northern Iraq, protests have repeatedly broken out over the last few days in several cities, where officials claim that hundreds of thousands of citizens, many of them Kurdish Christians, were not able to vote..." Link
What is this freedom that we are exporting? I do beleive it is the freedom of the majority to rule as tyrants. As Al-Sadr's spokesman defines it, liberty means that Iraq could pass all sorts of laws because the population is made up of religious Shi'ites, his example (of course) is his desire to ban gay marriage.
It appears to me that we have a deal with the Kurds where they will join an Allawi (or other U.S. puppet) to force create a working majority in Parliament. But in order to give the (sunni) Kurds what they want the U.S. needed to ensure that their local parliaments would have Kurdish (sunni) supermajorities unlimited by Christian or other minorities that might want the protection of the central government.
So lemme get this straight-
We are opressing Christians, to ensure the political dominion of
Communist sunni Kurds in the North, in order to put together a central government that will ignore the aspirations of the Shi'i majority and be run by Baathists.
Sorta
exactly like the status quo ante, but IIRC Saddam was never all that big on opressing Christians.
See how much Bush beleives in religious equality!