To start with, begin with a requirement that all Korans have to be printed in, or at least with, the recognized major European languages beside the Arabic text, in accurate translations. It is a strong fundamental doctrine of Islam that Korans have to be in Arabic text, but only extremists insist that it can *only* be printed in Arabic.

Included in that would be a law making it a crime to "deface" a Koran by marking out the European language text, just leaving the Arabic, which is what they would do. By calling it "defacing", it would make them gnash their teeth, because "defacing" a Koran is a terrible offense in Islam.

Then, instead of banning the Koran proper, ban the *commentaries* on the Koran as hate speech. This is an important point, because of lot of the more graphic elements of Islam, like the hijab, are not based in the Koran itself, but in the commentaries. Then subsequently make it even illegal to possess the commentaries, not just import and sale.

Then insist that all Mosque sermons be given in Dutch or other major European language. This would be tricky in the Netherlands because they are so multi-lingual. But sermons are not Koranic, so there is no requirement that they be given in any particular language. This would break up the power of radical clerics, because they knew they could be monitored.

Then and only then, and probably after some nasty incident, could you ban the Koran outright, as hate speech. But by then, from most radical to less radical, Muslims would be leaving the country.