It's an absolute farce that this story has been covered in the press at all - why they are covering it at all is a mystery.
However, I do not believe in banning any kind of protest really - if that man owns the books then he can do what he likes with them including burning them.
I would have thought that to religious people, it is the message that is holy and sacred, not the paper and ink.
If anybody sees one man in Florida torch a book and then thinks 'ok I'll hurt or try to kill somebody in retaliation for this' then they are vastly worse then he is.
Burning a book may be utterly wrong and a stupid way to make a point, but it hardly compares with death threats etc on actual people does it. And it is legal.