Oppression in the Netherlands??

Three Turkish politicians (two in the Christian democrats and one in the workers party) were fiered after they denied the Armenian Genocide....Tell me how is it that in a country where the freedom of speech is in such a high place (after the death of van Gogh a columnist that had some bad things to say about muslims everybody made protest walks to strengthen the bon with the freedom of speech and is said that it is one of the most important things in The Netherlands) here, they can fire people just because they used that freedom to say they don't believe in the genocide it's just unfair and ridicilous!!