Devil's advocate: he never said the parties in question were douches because they disagree with the privacy policy (although in this context it's certainly reasonable to assume it was implied). There's plenty of valid reasons to call the members of the PVV a bunch of douchebags, for example; especially the part where it's a populist party that thrives on insulting everyone else.
More: I don't disagree with left parties policies - I am a Democrat, and would most likely for left-wing parties in most of Europe (or whoever is less xenophobic). I am against tyranny on the left or on the right. I don't like people who support the denigration / dehumanization / oppression of those who they disagree with and marginalize an entire group of people. I can cite you dozens of statements made by the likes of Jean-Paul Sartre, Arthur Scargill, Jan Myrdal, Doris Lessing, Andre Gide, Bertold Brecht, and other lesser known political leaders intellectuals in Western Europe (that is, the part not invaded by Soviets thanks to US intervention), that is supportive of Stalin / supportive of USSR. I am stating a fact, not using slurs.
I am also critical of the right (or anyone, really) that support dictatorial/oppressive governments in Latin America and the Middle East. I am pro individual freedom, liberty, and dignity. I am against people being enslaved either by their own state, or by an exploitative economy through the invisible chains of debt.