This was decided ages ago in Texas v. Johnson. I don’t know why this even a thing. The case was already decided that burning an American flag is a form of expression, which lies under speech. However, that doesn’t mean you can burn flags everywhere! You can run your own flag but not others because that poses a different legal question on destruction of property! So fine go ahead and burn the flag if you’re any to express discontent with the nation. That should t be restricted as the bill of rights specifically sanction the freedom of speech. I don’t even understand why this is an issue.