You've obviously never studied Sociology, Mind Control tactics, Psychology, or read anything on the subject of Subliminal Advertising.
These games do NOT speak to those portions of the conscious mind/intellect where a sorting process can occur. They speak to the limbic part of the brain that is moved by heightened images, and the rush of adrenalin.
The human being typically uses 5-10% of their brain capacity and a LOT of activity goes on that is unconscious. However, it's often these unconscious functions that fuel behavior.
Similar naïve (or are they paid talking points?) assertions come up when the subject is porn. Someone like you (and it probably was YOU, under one of your other screen names) will insist that he likes porn and that he, personally, has never raped anyone.
This idea that only direct cause and effect that can be measured holds value is one of the lies that's decimating our society.
Parallel arguments are used that insist that certain levels of poisons are safe. NEVER are these poisons measured in composite or studied--for their cumulative effects--over time.
Whatever goes into a person or society influences its character.
Steady images of violence normalize violence. It doesn't matter if EACH individual doesn't exhibit that violence. Similarly, if heightened levels of corn syrup make a high percentage of people fatter but a limited number escape that fate, that hardly argues for the safety of said product.
Just because Libertarians like you who argue for INDIVIDUAL choice can't see how the cumulative affect of those choices reduces the moral character of a society hardly means that these foci on violence, porn, and fake food are not having major detrimental impacts.