Does that make it right?
Bottom line: You are wrong. The Bill of Rights means people have the right to political dissent and that means burning the American Flag.
It doesn't mean some prissy town councilmen or some fatcat State legislators can revoke that right with the stroke of a pen. The Founding Fathers were serious. Those are NOT suggestions enumerated in the Bill of Rights, they are the law of the land.
If you can't do the work, you won't really know where our liberties come from. They come from the Founders' applied philosophy of letting people alone. That included (at the time) letting local governments solve minor problems. Which flag-burning is. Your emotional reactions don't correspond to the way this issue developed in history.
You can come out in favor of gun rights and the First Amendment, which I'm glad you do. (Didn't see you comment on abortion.) But until you do the work of reading at least a bit of the history of where our laws came from, you won't understand what actually happens when government says it wants to do this or that. If all you rest on is your feelings about the way things ought to be, the effect is that you know nothing.