We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
One minor problem with it: she omits the power of religious conversion and religious fervor.
Another "minor" problem with it: She mostly neglects the destructive aspects of people, as if "normal" people had no destructive, wicked, or evil impulses. They do. Unleashed, the dark side can be a terrible thing. That is not news, and Jihadism offers many rationales for behavior that Western Civ. finds abhorrent today. These people did not buy into the historical arc of Western Civ. and perhaps never will.
One major problem with it: Many behaviors and choices of youth can be explained in similar terms so I see nothing specific to joining Jihad here. Similar motives could turn a suburban kid into a stoner Grateful Dead groupie.
The problem is that you can psychologize anything - after the fact. That is not a weakness of Psychology, but, instead, a statement about the complexity of human nature and human cultures.
This seems to parallel articles of the 80s and the attempt to explain cults. I suppose the cults of the 80s revolved around a more magnetic "central personality" and there was less outward directed violence.
In the West, disaffected youths seem to be satisfied with manufacturing hoaxes, grievances, and on line lynch mobs.