Cigarettes have a similar effect on your heart as fatty foods. But smoking a few a week is not going to harm anyone. Or make you blind or impotent or any of the hysterical shit they print on the boxes now. And only 17% of smokers die from lung cancer which might surprise some people.
Obviously I'm not saying that smoking isn't harmful but there's an obvious problem with putting the control of something into the hands of people who don't do it.
Non-smokers who approve of plain packaging and graphic warnings should transpose them to lager cans or chocolate bars and then decide how they feel. The government could easily decide to put a photograph of a cancerous breast on a chocolate wrapper as this is one of the illnesses associated with obesity.