You need to be informed.
When you talk about America's enemies, have you given a thought to why they are your enemies ? Apart from China and Pakistan - with whom we have border disputes - we have NO enemies in the world.
Accordingly to you artificially created and installed feudal systems in the middle east are acceptable so long as they continue to supply what US wants. But on the other hand popular public revolt aginst an oppressive regime - as happened in Iran - that overthrew the US puppet Shah - and brought in theological regime is not acceptable. Iraq allowed far more freedom to their population than most current governments in other middle east countries. They had no WMDs either. Fortunately world opinion counts for at least something in the Us otherwise I would not be surprised if the entire population of Iraq is moved to some arid and barren reservation to take over the country as the 51st state of the US.