I'd be happy if people keen to scapegoat outdoor smokers would extend that zealotry to confront and criticise drivers of heavily polluting cars. Instead I read how VW's cheating on emissions was "no big deal", about how to make cars perform better by "chipping" them which defeats emission controls, and about how much consumer stuff they have in their houses - most of made in China, killing mainly Chinese people of course... then a large can of worms starts to open.
Pollution from vehicle exhausts kills over 50,000 people per annum in the USA, passive smoking (when estimated including indoor smoking which used to be commonplace - but which I haven't seen happen at all for at least a decade) killed about 3,000. Balance is needed.