I am not going to argue that there isn't violence in the novel because it is essentially a trilogy about war--and the horrors of war--so, of course, there is obviously violence. What I will argue is that there must be a portrayal of violence in order to teach that violence does not solve our problems and is unethical.
Anytime a lesson is to be learned, the objectionable behavior must be displayed to teach that it is wrong. For example, our school has staged a couple of Operation Prom Night reenactments to show the students what could happen if you drink (or text) and drive. Students are shown doing these acts and suffering terrible consequences. Without showing the bad behavior, the reenactment would be much less effective.
