Violence is in us all, and it's not inherently a bad thing - it's about when and how it's used...you can't separate violence from the context in which it occurs, and it's often framed in mass media in terms of war - against other countries, against rival gangs, war on crime and/or drugs, war against Thanos, whoever has been framed as the bad guy for that particular work, but it's all propaganda - if you're paying attention, in most cases the good guys aren't really any better, THAT is the part that people get desensitized to that's dangerous - people go around blindly believing the violence that lines up with THEIR worldview is OK and never question it