I'm all for the legalization of weed not because I'm some cigarette who thinks it's a miracle cure for cancer or something completely incorrect, but rather because it's better to earn tax money off hippies than pay for them to live in prison.
Personally I think so, (Cigarettes and stuff) but I'm not big into politics so I won't really go into detail.
You're walking a line between freedom and fascism here. It's not what you personally think is healthy for the people (even if you're correct), it's what makes sense in terms of freedom and financial benefit. Tobacco is a ~$35,000,000,000 industry and contributes billions of tax dollars to the federal budget every year, and can you imagine the resistance from not only the public but also from private cigarette businesses if you tried to ban tobacco? It'd be idiotic at best.