Now, Kathy, go easy on the guy.
Yes, his essay is a fatuous pile of multi-culti brain droppings which disintegrates upon contact with history and reason. For a brief rebuttal, google "devshirme" and "Caliph Yazid" for examples of "belief in the mutual coexistence of all peoples." Or, if you don't give a crap about mistreatment of Christians, take a look at the Muslim invasions of India. Indeed, I'm still trying to get my eyes to roll fully back into place. During a couple of passages, I imagine I looked like Linda Blair in The Exorcist.
Be that as it may, some leniency is warranted. He is a student at Loyola University of Chicago. The Jesuit institution is still wrestling with the requirements of Catholicism, so it is understandable that its grip on Islamic issues would be shakier still.