it is ideas for which people kill each other.
I tgink this isnt in the end but still in the middle. In the end the killing is for the impulse of self interest like hoarding resources for my country to the exclusion of another or forcig slave labor for my benefit. Tje ideology enshrouding such a behavior is merely a justification for this impulse. Maybe to resolve cognitive dissonance. Then again inasmuch as these mysanthropic behaviors arise from us vs. Them, ideas may play a role in defining these two groups and who is in which group
