The bottom line is this.
However, the flag is supposed to represent a little bit more that just some current policy of your country you disagree with or something. It also (ideally) represents the ideals and some history, so unless you really don't like the whole thing that your country is all about (in which case why don't you quietly GTFO to somewhere else), you shouldn't really burn the flag. Your fathers probably died holding it. Have some class and respect, ffs.
Burning a flag for not being aesthetically pleasing is absolutely fine in my book, though.
...It's a coloured rag representing a patch of special dirt.
However, the flag is supposed to represent a little bit more that just some current policy of your country you disagree with or something. It also (ideally) represents the ideals and some history, so unless you really don't like the whole thing that your country is all about (in which case why don't you quietly GTFO to somewhere else), you shouldn't really burn the flag. Your fathers probably died holding it. Have some class and respect, ffs.
Burning a flag for not being aesthetically pleasing is absolutely fine in my book, though.