The answer's in the Koran. They hate us because we're not Muslims. It's so simple yet so many choose to look elsewhere.
"They hate us because we're not Muslims."
That kind of says it all, doesn't it? People like this guitarist filter the terrorist ideology through marxist-colored glasses and cannot bring themselves to understand. The terrorists are very clear about what they want and why they hate us if any of these folks care to REALLY listen.
They seek genocide against the west because we are not muslim - or more exactly, not muslim according to their interpratation of Islam.