I agree, once I think about it the act of burning a flag is one of property rights. You can burn a flag, a book, or a bra if you want to, as long as the owner agrees to it. If the burner owns it himself, permission is assumed of course. This is part of why I get amused at the occasional book burning still held, as they've usually bought the books from the store, thus increasing it's popularity and notority, and the book store simply orders more.
Now, burning it in public before a crowd while making speeches and waving signs does get into free speech.
Now, I may not agree to what flag burners are shouting, but I believe in their right to do it.
And grampster, there's plenty of other ways to start a constitutional amendment, if it was truly a big deal the other ways would have been started.
Personally, I feel that a ban on political flag burning doesn't belong in the constitution. After all, there's hundreds of other ways to deface a flag without burning it. Are we going to ban those as well? One way I can think of, that's probably already been done is to smear it with dogsh*t.
It's not something to get too worried about.