This is the exact quote from the citation I posted, and it does clearly support what I wrote:

only a week earlier, Wilders spoke up strongly in favour of widening freedom of speech laws in Europe, writing in the Danish newspaper Jyllands-Posten. He reacted to his possible participation in a Danish congress about islam and freedom of speech.He would if invited, he said, ‘plead for a nearly 100 percent total freedom of speech. Everything should be possible except to issue calls for violence. “All the EU laws against blasphemy should be scrapped as soon as possible,’ he said. Danish report here:

(the original is in Dutch)

I disagree with Wilders in his certainty about what the Koran says and does not say (as well as his general approach), but I would not characterize such a person as simply a book banner.