We've also got the issue of who draws the line on a continuum. I don't smoke, drink alcohol, do illegal drugs, ride a motorcycle or hang out in bars...all of which may carry some risks. But I'm fat and a bit sedentary. Is that good enough? Who draws the line? Do I draw it so as to vilify smokers? Does some fitness fanatic from the gym draw it to vilify me?
Setting some people up to put the screws to others who don't live according to their standards, so as to coerce those people into changing how they live, doesn't sound American to me. In fact, that kind of thing is part of why the nation was setup so we can vote out politicians who do things like that.