the ultimate truth is actually quite simple – number one, lets accept that the world is actually as the Creator who made it said – “Good” “Very good” – the only problem that can come into our world is strife, hate, bitterness, jealousy, resentment – hence anger, maliciousness, violence, cruelty (now as all desires get mixed in the heart, so by the time the brain receives, what it is meant to fulfill (for the heart desires, while the brain tries to implement through conceiving of mechanisms) the person is both a. convinced that the reason they hate is that the OTHER PERSON DESERVES IT – imagine how much rape, torture, murder (including from the current Islamic evil) that all of it, was based on people who actually thought, that THEY! not their innocent pure helpless victims! were righteous?!