"Literally the opinion of the rest of the world."
Okay, so then I guess you've visited every part of the rest of the world and asked their view on this matter. You also watch every foreign news outlet simultaneously.
"The surveillance state you've created in response..."
I wasn't aware I was the supreme emperor of North America. Those who actually believe that their personal lives are regularly invaded in response to 9/11 security measures wear tin foil hats on their head. You've never been phone-tapped, you've never been detained under suspicion of treason, you've never been monitored by some outside government source for posting on a message board.
Either way, I'm going to stop posting because this argument is not one which can be won. Both sides are too sure in their convictions. I just wanted you to know how ridiculous you sound to assume that we should as a country stop remembering what happened simply based on the assertion that "it's getting old."