There is nothing wrong with 'burning books'.
Just so long as everyone whom burns the books - does so of their own, free will AND it is their books that they are burning.
Just like I really could not give a shit if someone destroys monuments/statues/flags.
So long as it is not someone else's that they are destroying.
Burning books is silly anyway.
Almost every book, ever written is available online, for free.
Destroying books 100 years ago reduced the number of books that people could read.
However, burning books today is meaningless in this regard.
It's just some simpleton's idea of 'making a statement'.