The point is, no matter the belief system, humans are humans; controlled by Serotonin (feel good when doing things that maintain and improve survival, eating, reproduction, control of resources, and influence over others), hard-wired with Cognitive Dissonance, and limited by the Dunning-Kruger effect.
These kept the species alive as animals. Until humans as a collective whole can rise above this, there will always be issues.
PS: For the purists, Wikipedia is just a starting point to the topics and not authoritative.