The world "jihad" doesn't appear in the Bible, but human psychology is the same everywhere—maybe. And American Christians reguarly connect with the spirit of jihad, judging on the rates of domestic terrorism. Our media bleaches Christianity so that we aren't encouraged to think of it as fosteriing radicalism.
The last time I heard a Muslim and a Christian debate, I noticed a lot of delicious psychological projection. So maybe there is more truth to this question than we appreciate. I am going to sound like Harris by equivocating Abrahamic religions; they are intellectually oppressive and designed to talk around taboo subjects. What irks a Western religionist is hearing someone talk about the same thing using different language. On some level, I think they interalize their dogma so that when they hear it, they do not consciously process what it means.
Do atheists have some kind of detached position of intelletual elitism that allows them to see thorugh religion to people's true nature, or are they so disconnected from the human experience of religion that they don't understand the individual psychology of a martyr?
Each Abrahamic religion was used by an empire in a state of war at some point. Even for Christianity, the whole Prince of Peace thing is largely sarcastic—you know those Crusaders were preparing to go Old Testament on the Muslims. We are told that being a Holy Crusader was an honor and that they were mostly middle-class, but I have a feeling the truly intelligent ones found a way to serve God off of the battlefield. Islam is the same way with jihad: Let us pretend to worship violence so that the idiots go blow themselves up while the sane people stay behind.