It's the dualistic thinking, indoctrination and team/tribalism for their conditional, flimsy identity and esteem. If they learned healthy ways to not attach identity to things like this and to think on up to highest levels, to weigh valid evidence and make informed choices, use Sagan's baloney kit to see all the propaganda and not fall for it.

Artificial scarcity makes stress and people don't think there's time to learn all this to do better, but there are times or must find time for your own benefit. Some of it is chosen ignorance since knowledge is available to all with freedom, cognitive dissonance, cling to bad ways out of obedience and tradition, used to keep people in dualism and compliantly conforming to the box while the owners get richer.