Fascinating!
Although I cannot stand tobacco & lost both my parents at least 10 years early to the stuff, I cannot see how banning it would make it's users any safer or healthier. My only concern about drugs use is how to reduce & minimise the harms related to it. The only drugs use that I feel should be prohibited is dangerous or foolish drugs use. Ignorance should be banned, not drugs.
Banning alcohol didn't work, it's plain the laws against drugs have failed to make them safer or reduce their use & I am sure the same thing would happen if tobacco were banned.