Yep, the WHO says 50% of habitual long-term smokers will die from illness or disease directly caused by smoking. The other 50% will eventually die, from something, like anyone else, but not directly from smoking.
Not too bad, really, considering that smokers generally have inordinately unhealthy lifestyles, anyway. Don't exercise and eat whatever they want. Why skip the double chili cheeseburger and double chili fries when you're smoking a pack or two of cigarettes a day?
And one must consider that many folks have genetic predispositions to the same diseases that smoking will cause, so you have a compounding effect, between genetic predispositions, all around unhealthy lifestyles, and smoking. But smoking gets the blame if someone drops dead of a heart attack even though they had a genetic predisposition for heart disease, never exercised, were overweight, and ate double chili cheeseburgers a few times per week for 40 years.
Considering it takes 30...40...50 years for smoking to kill, and that one has thousands and thousands of opportunities to quit smoking in those 30...50 years, with many habitual smokers living just as long as the average life expectancy or even longer before surcoming to the long-term consequences of their chosen habit, I don't see tobacco as some great evil.
Certainly no greater evil than 40 years of double chili cheeseburgers, sedentary living, and being overweight. We gotta have some pleasure vices, I don't trust any one who has no vices.