You people are all fascists. If I want to smoke in the privacy of my own home – alone or in the company of other smokers – what business is it of yours? Yes, it’s dangerous and disgusting, but in case you haven’t heard, in a free society people are allowed to do dangerous and disgusting things so long as it doesn’t endanger anyone else.
Ban smoking in bars and clubs? Why? Do you really believe that you have a right to eat or dance anywhere you want without having to worry about second-hand smoke? If you don’t want to patronize a restaurant/bar/club/whatever because they allow smoking, you’re perfectly free to not go there. If enough people insist on only going to places that ban smoking then sooner or later large numbers of places will begin banning smoking on their own. In the mean time, why shouldn’t I be able to open a bar that allows smoking? If you don’t like the smoking, you’re perfectly free to get out. I’ll sit happily with my three other coughing, cancer-riddled customers and smoke my lungs out.
You could make a good case for banning smoking in public buildings (a public health hazard) or around children (young children might not be able to appreciate the dangers of second hand smoke, and might not be able to effectively remove themselves from the situation even if they did). That’s about it. There is absolutely no reason why consenting adults shouldn’t be able to smoke on private property, including restaurants and clubs. As for the argument that it would help others quite smoking, why the heck should I be obligated to help you quit smoking? If you want to quit, more power to you, but don’t expect to be able to restrict my civil liberties simply because it’s convenient for you.