I believe that violent cultures have been allowed to exist and perpetuate because of the US government sending tens of billions in aid to backwards countries, which are largely our enemies. If the people in these countries were forced to evolve for their own survival, I think they would modernize and become productive. The US has actually enabled them in their fruitless way of life, which tends to make people angry and looking for a target to blame. Ironically, they usually blame us, which probably closer to the truth than most people realize, but also likely the opposite that is intended.