I personally believe that no discrimination against people based on religion, race, color of skin is appropriate. So I believe that any islamophobic symbol is incorrect.
However, same rule applies to the other side. No islamic minorities should show symbols which could be disrespectful towards different people.
So the general issue why burning such a copy should be considered incorrect is the fact that Quran, apart from being just another book, is a symbol of Islamic religion. Hence why it appears offensive to Muslims. Same logic applies to other symbols. Do you think it’s absolutely okay to come to a square and burn LGBTI or BLM flags. If you were a gay and saw someone else burning a rainbow flag, would you feel safe at such place?