How can I say that?
Because there is a radical Islamist who has abandoned his radicalism and talks about how they laugh in joy at Western media's gullibility in accepting the enemy's propaganda as "truth": it's here in the Daily Mail.
This is how it starts:
When I was still a member of what is probably best termed the British Jihadi Network - a series of British Muslim terrorist groups linked by a single ideology - I remember how we used to laugh in celebration whenever people on TV proclaimed that the sole cause for Islamic acts of terror like 9/11, the Madrid bombings and 7/7 was Western foreign policy.
By blaming the Government for our actions, those who pushed this "Blair's bombs" line did our propaganda work for us.
He also states clearly the real reason for the violence: radical Islamic theology that has divided the world into two parts, the believers, for whom Islamic justice is necessary world-wide, and the unbelievers, who if they do not convert must be subjugated or die.
It really is that simple: it really is black and white.