.....But perhaps there is no harm in suggesting the idea. It might be a solution.
Those in positions of influence in the West who are promoting the carving up of Iraq are certainly not concerned with the welfare of the Iraqi people. No, their only concern is what's best for western(primarily US) interests, i.e, controlling Iraq's oil and ensuring the US geopolitical/military dominance in that part of the world.
If Iraq were split up, be assured that many Iraqis would take up the fight to reunify their country.
(and, of course, Turkey is shitting bricks at the prospect of a Kurdish state)
Another salient point to consider, is that by intentionally instigating the Iraqi on Iraqi carnage, the west would thereby be creating an artificial pretext for breaking Iraq into parts, and thereby conceal their real reasons for implementing the carving up of that country.
However, your statement that there was no infighting before the invasion needs closer inspection.
The Baathist regime, using their military, ruthlessly intervened to prevent any groups (Kurds in the north and Shias in the South) from "making waves".
But Iraq just didn't have the kind of widespread "tribal" level carnage that one sees today, kidnappings, murders, explosives planted in mosques and market places,
neighborhood against neighborhood, village against village, faction against faction.
The US intends for a permanent presence in Iraq; it's building huge, well fortified, permanent military bases in the Iraqi desert, well away from Iraqi population centers, and the worlds largest embassy complex in Baghdad, a 1.5 billion dollar, 104 acre affair. The US still firmly views Iraq as a central fixture in its plans to dominate that part of the world, current talk of US troop reduction, there, not withstanding.
I urge those interested in understanding events in the near and middle east to read -
The Grand Chessboard: American Primacy and Its Geostrategic Imperatives,
by Zbigniew Brzezinski http://www.amazon.com/Grand-Chessbo..._bbs_sr_1/102-3109306-9333755?ie=UTF8&s=books
Brzezinski was US national security adviser under the Carter administration. A brilliant but diabolical mind, he promotes the case for US hegemony in the world.
His book was published in 1998; read it in light of what is now transpiring in the near/middle east vis a vis the US. It all fits together beautifully.