Islam has existed for approximately 3000 years. The flag has existed for just under 250. In the scheme of things, the enormous symbolism placed on the flag (which almost every country creates, and generally solely as a marker of the land they control) is a relatively new development.
All I'm doing is seeing both sides of the argument. You have to truly understand Islam to understand how the Qu'ran is completely and utterly different from the flag. I understand in this day and age understanding Islam is difficult, but it would be helpful here if you did.
To you, burning the Qu'ran is burning paper. To me, burning the Qu'ran is burning paper. To millions and millions of Muslims, you're attacking God.
...Obviously, I can't make you understand the difference, and I'm sure it would be pointless to state that all "symbols" are just artifacts, items, ideas that really mean nothing unless you make them mean something...but it wouldn't matter. To you, the flag is more important, and that's fine. To me, the Qu'ran could lead to more dead people than the flag, so I worry about it a little bit more. Doesn't mean I value it more...