I guess I am not sure what point you are trying to make. I think of these restaurants and a tongue in cheek kind of place that realizes you shouldn't eat this way all the time, because, duh, you might actually have a heart attack, but indulging once in a while is also not a problem. Please do NOT make Americans out to be victims, because we are not. I am smart enough to realize I have to eat a certain way if I want to live very long. Americans are notorious for over eating and being lazy, do NOT believe for even one second that some one might actually believe that this kind of eating is any where near appropriate.
At least they are up-front about what their food willl do to you. So many other restaurants (claim jumper) want you to think that thier food is actually good for you, even if it isn't. Anyone who thinks that eating fried burgers and greasy french fries isn't going to hurt you or lower your health quality, should be strung up for being idiotic. No intelleigent or educated person could ever agree that this kind of food, on any regular basis, would be "good" for youl.