Which is precisely the problem.
The rational reaction to this is to have no reaction whatsoever. What's being destroyed here but paper? Are the ideas contained in the Qur'an in danger of being wiped from all memory if these few copies are burned? Is the guy breaking the law? Is he harming anyone? Does he have any power to do anything more than make his idiotic little religio-political statement? No? Then move on, nothing to see here.
This pastor is an idiot and a bigot, and so are his little band of followers. But this whole crisis results from our fear of how a second group of idiots and bigots will react to the actions of the first group of idiots and bigots. Rational people are caught in the crossfire in a war between two groups of religious fanatics. The only power these people have is the power to spread their hate through the media. Let's ignore them and remove that power.