You seem to have inverted the logic: I did not say we have to make everybody smoke, which your examples imply.

My position is: do not ban (make illegal!) everything that has statistically significant risk for one's health (like smoking, alcohol, mountain climbing, spelunking, bike-riding, horse-riding, car racing, NFL...).

So no, I do not see why banning smoking altogether is a good idea (and no, I am not a smoker — I never was either). I can get behind increased health premiums or heavy taxation, banning smoking in communal spaces...