Earlier quoted context omitted.
I agree and am pretty sure that at least some of the islamists are people that feel left behind by the west, maybe would like to have a similar live but grow to hate them because they just can't have it and use the religion find likeminded people. And i say that without any elitism. It is similar to trying to understand where all the Trump votes come from when you are more liberal.
The original Al-Qaida (every major member is now dead) which planned 9/11 actually didn't feel left behind at all. They were trying to fight change and westernization. I think that most of the current batch of terrorists, however, are just a bunch of primitive drug addicted machos who want to blow things up (and I'm serious about that, go read the Wikipedia articles on the people who have made attacks in Europe latel…
Go read the Wikipedia article about 9/11, they were fighting against the US attacks on Muslims, their influence on local politics, and their support of Israel. Why do people think it takes more than that?