I'm not sure this is accurate. The only Arab country the British (sort of) controlled during part of the 1800s was Egypt, with occasional trading posts and forts elswhere.
The heartland of the Arab world didn't come under European rule till after WWI, and ended shortly after WWII.
There is this idea out there that centuries of foreign domination warped Arab society, when in fact European control didn't last much over 25 years.
I also fail to see how dragging in the history of the Crusades would be helpful to British rule. I'm curious if anybody has a reference for the Brits using it in this way.
Well, that’s not exactly what the author said though. He said that the incorrect history was taught in the 19th century by FRENCH and British colonial schools. it was the French more than the British in fact.