You're a bunch of fucking idiots. By banning smoking we're trying to help you break your addiction to a drug that kills 30-50% of people who use it. Stop whining.
Or, in a longer form:
OMG SMOKERS NOW STAY AT HOME AND DON'T CREATE JOBS IN PUBS - well, jobs aren't intrinsically valuable, are they? I mean, no-one actually wants a job, right? That's why it's called "work". If people wanted to do it, it would be called "fun" and they wouldn't pay you to do it.
No-one complains now about how we're not all subsistence farmers doing 12-hour days of backbreaking labour to put food on the table, instead we rejoice that automation has saved people from a life of drudgery.
OMG SMOKERS BUY CHEAP BEER FROM THE SUPERMARKETS - how terrible. You mean they're getting a substitute product for substantially less money? Well, that's good. Efficient. It means that they can spend the fucking money they saved on something else, like a Sky subscription or a flatscreen TV. Guess what? That's keeping people in jobs, innit?
OMG BANNING SMOKING STOPS ME DOING WHAT I WANT - what you want is idiotic. Stop it. Look, if you must be physiologically addicted to a drug, at least try something that's a bit less crap than nicotine. At least coke gives you a rush!
OMG BAR STAFF SIGN UP FOR PASSIVE SMOKING - fuck off. Who checks the box that says "yes please, I'd like an early death due to other people who can't stop themselves being disgusting"? It might come as news to you but bar staff make minimum wage. How many of them actually have a real choice, between "taking this job and feeding my kids" and "not", hmm?