Smoking is a bad analogy because, unlike obesity, it directly affects the people around the smoker. However, let's run with it. When a smoker buys cigarettes, there's a warning on every pack. Sure, they ignore them, but they don't try to fool themselves into thinking that smoking is GOOD for them or healthy.

The tendency that is highlighted in these ads is essentially trying to say that there isn't anything wrong with being obese, but there is, and the statistics are as unequivocal as they are with respect to smoking.

I'm not saying that fat people don't have a right to wear bikinis. I'm just saying this ad is wilfully deceptive and trying to reinforce a false notion - that obesity is not a problem. It's no different than the old cigarette commercials from the first half of the Twentieth Century.