Violence, consequently is desired and is what sells. This similarly relates to the action figures of the X-Men, Masters of the Universe, and many, many others. These types of toys represent basically one thing, violence. This in fact is how the X-Men action figures on commercials are portrayed, as being violent. Obviously, this central concept in both G.I. Joe, X-Men and many other modern day action figure type shows, is violence.
Violence is what appeals to the children in an enduring way.
The violence and the fighting in the X-Men is never resolved. This is a militaristic justice that the X-Men are dealing with. They are also saying that every day a battle is fought and no resolution comes forth. This relates to all violent shows saying that violence seems to be the norm, meaning violent acts are normal. They are not normal or natural for children to be subjected to.