This article misses a major point, which is that there are many sects within Islam, the author (and non-Muslims in general) only know of or acknowledg Sunni vs

This article misses a major point, which is that there are many sects within Islam, the author (and non-Muslims in general) only know of or acknowledg Sunni vs Shiite, when in fact there more sects that claim to be Muslim than are in Christianity and Judaism combined. The one that ISIL, Al Qaeda, and almost all terrorist groups follow is called Wahhabism https://en.m.wikipedia.org/wiki/Wahhabism https://en.m.wikipedia.org/wiki/Wahhabism. To understand what this group preaches you need to know the history of the region. I'll spare the details and just mention that this group was supported by Muhamed bin Saud (the ruling family in Saudi Arsbia which the country is named after). Wahhabism preaches much of what this article describes in the senseless killing of hummens, which what bin Saud needed the justification for when killing the Muslims of the region while rising to power. They have many devious teachings with deeply rooted evil that true Islam rejects.