NoCryingUntilTheEnd
Banned
I don't think it's a "hilariously flimsy veneer." The same thing applies to literature, film, etc.
Example: William Faulkner's Sanctuary involves a rape with a corncob. It's obviously meant to be despicable because of the context. You're essentially arguing the context is a veneer because Faulker conceived of the idea, came up with the proper words to describe the rape, and then constructed a scene around it.
The difference there is that the reader is not meant to take enjoyment from reading about a person getting raped with a corncob. In most video games, the player is meant to take enjoyment from killing others. It just so happens that in those games, those other people are (for the most part) bad.