I am strongly opposed to this administration's actions. Particularly in Iraq.
However after 9/11 I expected there to be a formal declaration of war, a draft, and an all-out effort to demonstrate very clearly to bin Laden and anyone who wanted to shelter him that you Do Not Fuck With Us. Not only did I expect that but I would have supported it! (And where I was in NY, a good number of my co-workers expected a reaction like that from the USA.)
After all that was our reaction the last time that someone managed to successfully attack the USA on US soil. (A minor incident named Pearl Harbour. You may remember it. I'd personally consider that a far smaller deal than taking out the 2 most economically important buildings in the USA, hitting our military headquarters, and attempting to take out the White House.)
Then Bush came out and told us all to continue shopping. He further proceeded to take out Afghanistan in a fairly careless way and then proceeded to try to turn the public feeling into support for taking out Iraq. (Which had nothing to do with 9/11.)
Yes, there was support for something more than treating this as business as usual. And if we had a real leader in the white-house, rather than an heir designated by the usual interests, we might have demonstrated that to the world.
Regards,
Ben