Fitna caused much discussion, so far as I know without touching the crucial point.
We don’t need Fitna to understand what Koran is about. Koran is an artificial ideological product and not a real spiritual and religious book. We know from history that this ideology supports violence.
Even papal ‘holy’ wars were made in spite of the Christian spirit, not because of it, while Koran fully justifies ‘holy’ war. The problem is that Islamization can not be stopped by just understanding the identity of Islam. What Meaning and Faith will resist islamization?