US committing itself to 100 years in Iraqi governance, seemingly!

It seems from recent commitments the US is making to the Iraqi central government that it will be unable to extricate itself from involvement in that country's politics for the next century, at the earliest.
The central government can't hold together the 3 Muslim groups in one unified structure. This has been a premonition for the last decade in intelligence circles and the end is near to keep up a pretense. A confederation of three regions--Sunnai, Shiite, and Kurd will work, I believe. Neither of these factions should be given independence--Iraq must stand as its unified bulwark.
But without local governance as key to preserving the cities and towns which make it up these sectors, the US will next be forced into the Muslim sect conflict that has last over a thousand years--once again!
There is no point to rehearse in this item the reasons why the Iraqi central government has no choice but to relinquish control to each of these Muslim sects and simply act as the mechanism to distribute allotments to each of them and maintain harmony among them with the help of sector military establishments and the several Muslim sector governing agencies--en toto overseen by the US military advisers.
Action must be prompt to avoid civil war in Iraq.  Confederation, immediately!