Is public burning of a flag not Arson rather than an expression of one's 1st Amendment rights?

While I know it's a 1st Amendment Right, I'm not a fan of it. However, we did all serve so that anyone can express themselves. There's no amendment that says we have to like their message. I am a firm believer that our country and our flag represent something stronger than the actual burning itself. It's a tough old flag and while one my be burned now and then, the things it symbolizes are not being burned themselves.

Already adjudicated by SCOTUS.

It's Arson if the flag does not belong to you; it may be freedom of expression if the flag does belong to you and there is no public danger from the act/flames. Unless a law is passed that meets the test of challenging expression, it is what it is. Far better to have the option of 1,000 people waving freely waving flags, even if we allow one to burn.