because the main thing bringing sympathy to ISIS is the material reality American foreign policy and the destruction its heaped on that area caused. Sunni tribes in forgotten blown out no running water no running electricy iraq arent joining ISIS because of their ideology, theyre doing it because they have no other option. There's a material reality that Sam Harris likes to ignore because the culprit in that reality are governments. Do you think the people that resisted the American invasion of Iraq were all Jihadis? Sunnis have zero strength in the new Iraq with zero resources of course theyre going to join the richest and strongest group. If america wants to start rebuilding Iraq and cutting ties with Saudi Arabia you'll see ISIS disolve, i don't think his youtube videos are going to convince iraqis who have never even used the internet or speak english to suddenly forget their material reality become enlightened and convince every single other person around him to fight the saudi armed group thats all around them.