"Inhalation of smoke, whether it be generated by Tobacco or a fire, does cause breathing difficulties due to carbon monoxide and then you have to add in all of the poisonous chemicals that they add in.
"Therefore I do support the ban on smoking in public places as its based on sound Science FACT, but even putting the science aside, it's pretty horrendous breathing in the smoke from a smoker if you are a non-smoker."
I concede all of your points, but not your conclusion.
Please understand that I'm no "Small Government At All Costs" type - but I believe that it should be protecting us from threats that we, as individuals, CAN'T protect ourselves from, rather than those things that we WON'T protect ourselves from.
Dumping of toxic waste in the waterways? Erosion caused by clear-cutting forests? Those are areas where undividuals are at a disadvantage and need governments to step in.
Smoking in bars/restaurants? Not so much.
Here's an experiment: two bars, side by side. (We'll use bars as the example since, by definition, you're supposed to be old enough to decide whether you want alcohol and/or nicotine in order to enter, as opposed to a restaurant where minors might be expected to be.)
One has a prominently-posted sign: "Smoking Prohibited". The other has a similar sign: "Smoking Permitted". Whether you do or don't want a cig with your drink, you know which bar will accommodate you. If not enough customers choose to patronize one or the other establishment, it either changes its policy or it goes out of business. Eventually, with a sufficiently large number of bars and customers who prefer to patronize either smoking or non-smoking places the system should stabilize with the most efficient mix. And all without government intervention. You simply make the CHOICE as to where you want to go and to whom you want to give your money.
Note that the above doesn't prohibit government from establishing simple rules for defining standards for "smoke free" areas and allowing mixed-use establishments with the appropriate use of interior walls, doors, and ventilation that flows from non-smoking towards smoking areas and out.
Personally, I probably WOULD patronize a smoke-free, cell-phone-free restaurant. I would just rather have the CHOICE.