The advance of Islam can still go much further than is the case in Western Europe at the moment, and can only be stopped when we ensure that future victims of the jihad (i.e., the population of the Netherlands and the rest of Europe) retain their freedom of expression. Muhammad, the founder of Islam, always took special care to silence his possible critics first, usually by assassination, just like his namesake Mohammed Bouyeri who carried out the assassination of Theo van Gogh. The Islamic tradition itself teaches that only after Muhammad had silenced his opponents with violence could the process of Islamization begin. It is therefore of the utmost importance that we in the Netherlands (and anywhere else in the Free World) do not go any further towards the prohibition of criticism of Islam, because Islamic ideology is not resistant to the free word.
Christianity on the contrary, is. Christianity is the religion of the word, reason, love, and freedom. Islam on the contrary is the religion of violence, coercion, fear, and obedience. The nature of man is such that it will be a close contest as to which the two religions will win.