I am not assuming you're wrong klfwip, but I would like some examples of times that ideology was the cause of mass warfare. It seems to me that ideology is usually just the justification for actions intended to produce material results.

• I don't think sociohistorical scholars can really believe that fascism would have risen without the threat of communism pushing the corporate class to pour massive amounts of money into fascist parties.

• The crusades wouldn't have happened without the Pope trying to expand his influence and gain wealth for the church through control of religious sites and artifacts

• Nobody would care about the dumb question of corporate personhood if corporations hadn't poured billions of dollars directly and indirectly into using the litigation of Citizens United to increase their own influence