Come on pussnboots. Everyone knows smoking is harmful and kills. Moderation and care on all the other things you mention will help and your argument is weak. Divert attention if you wish. But I lost my father and father in law to lung cancer (the latter terrified and suffocating 6 weeks from late diagnosis of industrial disease). Be sensible and avoid the agony of suffering like this and forcing your loved ones to watch. I imagine very few smokers in the late stages of smoke induced illness will not regret taking up this deadly habit, and more importantly now we all know the harm, not trying to cut down,or better, stopping it.
My sister and I have never smoked because we listened as children to our fathers smokers cough. In a perverse way he may have saved us from becoming direct victims of smoking, if not from indirect victims by losing him to this fatal addiction.
Just an aside, believe it or not, I visited a medium on an issue and my father came thru. His message to me was about his death from smoking. He said that everyone smoked when he was young and didn't know how harmful it was like they do now. He told my medium that he was concerned for someone (I believe my heavy smoker son) who should stop as the dangers were well known now. He then (upsettingly) asked that I not be angry about what he believed I saw as his preventable death. I did, and do, think this but thought I hid it.
Let my tears, my loss, and fear for my son make just one smoker think about what they are doing.