What Colonialism in the Middle East are you talking about, Maka? There really wasn't much to speak of other than the past couple of hundred years:
http://ocw.nd.edu/arabic-and-middle...ligion-history-and-culture/lectures/lecture-4
That is a very limited view of Colonialism. One Empire or another has brutalized and stolen from the people who lived there since before Christ. What effect has this had on the culture?
All of this violence and poverty plays a huge effect in what we see now in terms of how these people view their fellow humans.