But COPD, Emphysema and cardio vascular issues also affect smokers, it’s not just lung cancer.
Sure.but I don't think it escalates to a 90% death rate
It's actually a 100% death rate as all smokers sure. Jokes aside, your statement doesn't have meaning. Many deaths are not attributable to a single cause. However, it's been studies endlessly and is well accepted that smoking increases all-cause mortality.
Im not arguing against that at all. I was making a point about the magnitude of that impact.
People tend to over-estimate the impact of both smoking and obesity.