because a new government will be required, a RIGHEOUS government that will completely restructure society. A society that is basically one big community. People will understand that smoking kills just as much as heroin does...just a longer live expectancy. A society where cigarette sellers and bosses are frowned upon if not hated, as people will see those people as killling their own blood. Because you know what, it's long-term murder. Government will strongly punish those braking the law (death) which in itself is enough to deter small and medium potential law breakers. As for those trying to make a market from overseas...a strong government intelligence agency will take care of those foreign killers...Think eichmann. But, government will provide the absolute best in psychological and medical rehailitation to those that are addicted to their own suicide-including bringing in people from overseas to help council the people. The next generation will not see cigarettes on the shelves, wont see their parents hooked on, and as such, they simply won't want to kill themselves.
It can be done....I love my people, and will not stand by seeing them being killed!
Also, appart from being addicted to death, they won't want to smoke, because as was said, society will be structured into a stress free society.
I will not see my people killed!!!