Post Praetorian said:
. . .
Essentially, is such a resistance born of reasoning? Is it innate? Or might it be conditioned?
For if it is to be considered innate, why might such an inheritance not be shared universally?
If conditioned, where might come the source of conditioning and what if another were not to receive a similar quality or quantity of same?
If purely a construct of reason, what if another may reason differently?
Just as people can interpret the Bible/Koran/whatever for good or for evil, so too can reason be used for good or for evil. With regards your revenge scenario, societies of the world that maintain religious wars for centuries seem to be expert at carrying on a never-ending cycle of revenge -- after all, isn't the martyr a primarily relgious device?
What keeps me from resisting stealing from someone I dislike? My parents taught me that when someone wrongs you, to not stoop to their level and to instead set a higher bar for oneself. Where did they learn that? I don't know, my mom was raised catholic and my dad was raised atheist. My father's mother was one of the kindest people I've ever known, and I believe that she also was an atheist.
It's fine to speculate that religion leads to a higher moral code of behavior (and without doubt the extremists wrecking havoc are convinced they are behaving at the very highest moral code). I can similarly speculate that fully promoting our human intellectual potential is the more fruitful course. But it's all speculation in the absence of any evidence. Since you've discounted mine, do you have any to offer?
Hopefully I didn't type any double double words again :)