I was slightly against the invasion when it occurred. Today, I am against it and mad as hell about being mislead.
We originally went in to "remove WMD". Then, it was to "fight terrorism". We were promised that the Iraqi people would welcome us with open arms. Guess what, all these were wrong!
Who is killing US troops now? Not Hussein supporters. No, they are supporters of Shiite Clerics, a former repressed enemy of Hussein - part of that population that would supposedly help us.
The Iraqi people don't want us there. Why should they? We fabricated a reason to go to war. The "Allied Coalition" shut down the Iraqi newspaper due to its content (it was supposedly promoting violence). If the Iraqi people are better off, it is only due to easing of trade sanctions (the exception being the Shiites).