The Europeans are not stupid - but they are quite blinded to reality by leftist/socialist utopianism. It's interesting to watch the situation in Holland with the Van Gogh murder and its fallout. It's a wake up call for them. Let's see how many actually wake up - and how many shove their heads deeper into the sand.
They said Fortuyn's assassination was a wake up call. They aren't awake yet. They may not be stupid, but they are too smart for their own good. Liberalism is based on a principled calculation that sounds good when all you are doing is thinking about things hypothetically. Once you actually have to deal with reality, though, it falls flat.
Europeans are not stupid, they are blinded by the tight lock that the liberals have on the media in Europe.