I strongly believe that Cigarette investments should be banned, for it is known, and proven to cause MANY health problems. As stated by the CDC "Smoking arms nearly every organ of the body, and causes many diseases and reduces the health of smokers in general." The option of buying cigarettes should not be so simple, and be so easily accessed. You can easily compare cigarettes to drugs. They are addictive, and life threatening, just as cigarettes are.
Yes, what you say may be true, but the investors in cigarette companies are not the problem. Anyway, if we wanted to ban cigarette investment, why wouldn't we just ban the product? And also, there are so many people who work in the cigarette industry. if you take away the investment, you would also be taking away all the jobs that cigarette companies offer. Finally, if we ban the investment in cigarette companies, we would need to ban the investment in all other dangerous things.