We kill over 40,000 people a year in automobile accidents. Should we ban the use of cars because they endanger the other guy?
400,000 Americans die every year from smoking, even though only 20% or so of the population smokes (compared with nearly 100% who ride in automobiles).
Additionally, automobiles are a necessary component of the American economy. If Americans didn't ride in automobiles, the economy would collapse. Tobacco is a completely unnecessary component of the American economy. If tomorrow every American quit smoking, the economy would improve.
Sorry, I don't see a comparison between the two.