What is the real issue at hand?
What I take away from most of the anti-smoking comments here is that people don't like smokers because of the smell of the cigarette. Cigar smokers are detested (except for Clinton?) because the smell is strong, but pipe smokers (hetero) are thought upon fondly. Same substance, different smells.
I'd imagine the acuteness with which smoke assaults one's nose causes the person to think "oh my god, I'm breathing in the poison!", but what are the actual parts-per-million and exactly how bad for said person is it actually?
Granted, some people have family that has died from smoking. My grandmother died at 70... from smoking? And that stings, but as others have stated, cars are probably far more dangerous, they just don't (most of the time) stink quite as much.
Is smell the real issue here? If they legalized marijuana, would that be okay because it smells better?
And what others have said about smokers funding a lot, don't belittle it. It is an expensive habit with about 70% of the price as tax. I think even tobacco companies are required to support anti-smoking campaigns.
The clear solutions: Make a cigarette that doesn't stink!