I’m trying to empathise with them… I get why people become radicals of other kinds… but saying no music, no sex, live by the book, behead those who disagree… what part of that makes people think “I want to get into this, this sounds fun”?
The Arab world has valid grievances, which motivated 9-11 for example, but there’s more to it than that.
One big reason is that the Saudis fund it. They’re not the only ones - a plurality of the weapons that have flowed into the middle east have specifically gone to the most radical religious extremists because those groups tend to also attack socialists, arab nationalists, African unity types, and others that oppose the global economic order.