To get this thread back on topic:
Maybe. I think it's also a cultural thing. Certain narratives have held sway in our culture for over a thousand years and such things tend to not be questioned, or questioned rarely.I came to the conclusion a few years back that it's a psychological issue; one that's based upon an individual's egotistical approach to themselves, their families and ancestors.
Sounds mean, and I usually think that psychoanalysis of people I've met and haven't met is a kind of ***** act in most contexts, but this is a religious forum that should accommodate such a thing. And I think I remember see an actual psychological study years back that indicated such a thing.
Something along the lines of a self talk that sounds like: "my grandfather was a great man - how dare anyone call his beliefs false!"