Surely the point is all down to freedom of choice. As a smoker you choose to smoke, however, as a passive smoker that choice is taken away from you. Yes, as a non-smoker I do resent having to inhale toxic fumes but someone drinking next to me has no direct physical effect - I don't inhale the alcohol. Someone else drinking will only has an effect on me if their behaviour (drink driving, violence etc) is effected by alcohol - and there are already laws in place for those situations.
Passive smoking does kill and whereas I can choose to go to a bar or not, I have to go to work. Children and pets are also effected by second hand smoke.
Breathing in other peoples' secondhand smoke can damage almost every organ in the human body. It increases the risk of lung cancer by 24% and heart disease by 25%.
Breathing in secondhand smoke makes the blood more sticky. This means that there is a risk of blood clots forming. A blood clot can block an artery and cause heart attacks, strokes, angina or even complete heart failure.
You can't see or smell 85% of secondhand smoke.
Secondhand smoke is a dangerous cocktail of over 4,000 chemicals, including 69 cancer-causing chemicals, such as arsenic, benzene and formaldehyde.
However - all you smokers do pay for our NHS so smoke as much as you like, thats your choice. The Govt is just trying to protect those who don't want to die of smoking-related illnesses. It may be a bit OTT to include bars in the ban - but as for the workplace - surely no one can disagree with that??