Absolutely cigarettes should not be banned. This is a free country, and I find that usually the people I have had in-depth conversations with about why smoking should or should not be banned are very against having any of their own vices taken away. While it's true that there's a high correlation between respiratory illnesses, such as lung cancer, and smoking, smoking is not the only culprit. All you fans of fried foods, did you know that frying food deposits carcinogens on your food? Fried chicken, fried shrimp, french fries, chimichangas. Yep. They've found carcinogenic chemicals on them. Hasn't stopped me from eating them. On some barbecued meats too. If you like to barbecue with charcoal, experts recommend you put aluminum foil over the coals b/c as you grill, any fat that drips onto the coals burns and deposits carcinogens back on the food you're about to eat. And none of that explains why some people who smoke for years and years never get cancer (think George Burns) while those who haven't yet been exposed to a significant quantity of carcinogens are fighting cancer (think childhood leukemia. Support your local children's hospital!) So if we ban cigarettes because of their bad effects, what else are we gonna ban? Fried foods? Cars (they pollute)? Light bulbs (check out the box the next time you buy some. It's illegal to throw many of them in the trash b/c they contain mercury, a toxin)?
And no, I'm not a smoker. I was recently; I'm in the process of quitting. But it was my choice to start, and it was my choice to quit. The key word there is choice. I don't think anyone out there has the right to take away my choice to do what I want with my life and my body as long as I'm not hurting anyone else. And I was a respectful smoker. I didn't smoke inside, I tried to stand downwind so others wouldn't get my second-hand smoke (believe it or not, most smokers I know don't like second-hand smoke either). And I believe it goes both ways. There are lots of things other people do that I don't like, but it's their choice to do it (hello to all of you who got your baby girl's ears pierced).
As for sky high taxes and sky high insurance premiums on tobacco products, sounds like discrimination to me - making a distinction against a particular group. Usually these taxes don't go for cancer research or any other medical research (remember, smokers aren't the only ones who get cancer. We could all use a cure.) Our government right now has a recent history of waste, why should we burden one (or two, if you include the farmers who make their living growing tobacco) group of people to give the government more funds to squander? As for raising insurance premiums, uninsured and under-insured people are already a huge strain on our society (I won't go into the details, it'll just make this that much longer), which is why we now have Obamacare (with all of its benefits and all of its flaws). People already have enough trouble getting insured if they have pre-existing conditions. Ever known someone who couldn't find a better job because changing insurance meant their a pre-existing condition, like diabetes, would no longer be covered?
But ultimately, don't take away freedoms from someone else if you don't want them taken from you. I believe it was Thomas Jefferson who said something along the lines of those who would give up freedom for security deserve neither.
As a final rant, I have a pet peeve I really want to get out there. If you are a non-smoker, do not walk into a designated smoking area, especially if it is one of only a few in a large area and one that can be easily avoided, and then complain about people smoking! That's like walking into a kindergarten classroom and then complaining that there are children in the room. What did you expect?