Not only is it bizarre, but not even true. Many terrorists are well educated, and in the end it is not a major factor.

https://politicalviolenceataglance.org/2015/12/04/more-educa...

The French terrorists of the recent attacks came from the Banlieue ghettos. It is not the education of individual people it is the existence of ghettos itself that is bad and causes crimes, terrorism and occasional car burnings. How else are we supposed to get rid of ghettos, if not through education?