OK, that's better, sorry for the insult. I don't think we should have invaded Iraq either. But it's too late for that.
The difference between Iraq in Kuwait and the US in Iraq is qualitative. Iraq attempted to seize the Kuwait oil industry and its revenues. America is attempting to rebuild the Iraqi oil industry so that the people of Iraq may use the revenues to provide a better future for their nation. Iraqis murdered, raped, and pillaged in Kuwait, while Americans in Iraq are rebuilding infrastructure, educating, providing health care, and creating a framework whereby Iraqis can choose their own leaders for the first time in a few generations.