It may very well be pathetic, but is it criminal? Over here in the U.S. it would not be. And I kind of wonder if criminalizing distasteful speech is a super-duper bad idea.
It is criminal indeed. He is discriminating muslims, which goes directly against Article 4 of the Dutch Constitution which states that every single person has freedom of religion. He is pushing the Muslims in a corner.

"Tear out half of the Koran if you wish to enter this country"