Nicotine is at least 1000-2000x more toxic than caffine, is far less addictive (although shows limited addictive side effects) and is not carcinogenic.
Nicotine isn't a carcinogen either you tool, it's the tar, carbon monoxide and 400 plus other chemicals in fags that give you cancer, the nicotine is merely the addictive agent.
But I see you avoided my question so I'll ask again. Why, if nicotine is as toxic and cancer-inducing as you claimed, is it licensed and prescribed by nearly every major Western healthcare system on Earth?
Now, to rebut your 'facts' one by one.
"Nicotine is at least 1000-2000x more toxic than caffine"
Wrong, the median lethal dosage of caffeine for a human is around 4-5 grammes, the lethal does of nicotine is around 40-60 milligrams. So taking both in their purest form (which no one would do) the difference is x100 at most, a whole order of magnitude lower than you stated.
Furthermore when you look at how both are used in reality the difference becomes even lower. A smoker absorbs around 1.2mg of nicotine in each cigarette, someone drinking a 100 ml cup of coffee will consume 40mg of caffeine. So whilst it would take around 42 cigarettes smoked in one go to create the possibility of death, it would 'only' take someone downing 125 cups of coffee in the same time frame to be at the same risk of mortality.
So in real terms, and putting in the context of how each is used, at best caffeine products are only 3 times less toxic than nicotine. I haven't even mentioned e-cigs yet which aren't as efficient as cigarettes at delivering nicotine or conversely energy drinks which deliver much higher levels of caffeine.
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"is far less addictive (although shows limited addictive side effects)"
If we define an addiction as something you do several times every day and feel negative side-affects with withdrawal then 80% of the Western world are addicted to caffeine (most of whom will never realise they are until they try and go 'cold turkey' and start getting headaches and nausea.)
...studies had demonstrated that people who take in a minimum of 100 mg of caffeine per day (about the amount in one cup of coffee) can acquire a physical dependence that would trigger withdrawal symptoms that include headaches, muscle pain and stiffness, lethargy, nausea, vomiting, depressed mood, and marked irritability.
http://en.wikipedia.org/wiki/Caffeine_addiction
So whilst pound for pound nicotine is more addictive, caffeine is far more addicted to and , like the last point above, more addictive as a consumable unit in the context of how it is taken.
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"and is not carcinogenic"
Like nicotine then. Whilst you can cite 'studies that link it to cancer' there is no known or accepted scientific notion that nicotine causes cancer and implying it is (as you have) is a downright lie. In terms of finding studies that link anything with cancer, this is pretty easy and you only have to read the Daily Mail headlines to see how many things get 'linked' with it.
Until you can prove and convince the rest of the medical and scientific world that nicotine is a carcinogen, I'd suggest you are making yourself look foolish at worst, and dishonest at best by keep posting that it is one.