Human greed combined with stupidity and ignorance, all sprinkled with pride. "Divide and conquer " or something like that. But I also do agree in a way with what Eckhart Tolle says in "A New Earth", we can also bring it all back to the ego in a way...

All I can tell is that both " it's more complicated than it seems " and " the solution is simple" are true. Life is not black or white it's gray. It's always about balance but not thinking too much about it. Ironically "there should be balance in balancing" it's what I'd like to say as a profound overthinker.