I share your feelings on this issue. When I see someone burning an American flag, it seriously pisses me off. If I saw someone doing that in person, I'd probably try to stop them, perhaps gather a brigade of supersoakers to put out the fire, I could even see myself getting into a fight over the issue.
But, much as I hate flag burning, I do consider it to be a form of free speech and so wouldn't outlaw it.
I was reading through this thread, intending to post some pithy and wise statement, but came across the above post, and couldn't think of anything to add. Salute. Even if you were on the opposing side, which you're not, salute.
Just remember, the reason that the rest of you can burn the flag is because people like madanthonywayne defend your right to do so...