Games or gaming are't a bad thing!
Games help us relate to the world, take a small lion cub, in his first months is just fun for him. In our first human years is the same everything we see is a game.
A "game" helps us to sharpen our skills but in the same time influences us toward one way or another.
In case of action game this is what you will see , more and more action.
Shooter games are about guns, RPG are role playing games that supose to emerge us in a similar world, or a world that we belive in and shapes our perception. Then there are horor games, survivor, puzzle games and strategy.
Our perception is shape by the game we play . In the case of the lion cub his perception has shaped by the games he played witch were catching prey .
in case of GTA the player emerses in the world of violance, a world that I may add is of his own liking. In the hours that he plays inside his brain Dopamine is relased witch gives him pleasure. In the hours passed in front of the screen he starts to become more tired and tryes to stay awake . After that his attention span decreases and the images of violance gets stuck in his head.
You see this is how you change a person perception or lets say reprogram
a person. Now more time is passing and our subject (the player) continues to play the violant game. After few days it becomes for him very hard to sleep and when he sleeps he has nightmares. These are classic sintomes . He becomes more and more tired from the lack of sleep and becomes angry for apparantly no reason. Again some days pass... Now hes is more tyred and more stressed and on every sound or word he jumps or hear something different. At this point he is ready to make a mistake ... any kind of mistake.
In conclusion games can expand our imagination and creativity but if it is too much it destroys our good parts.