The majority of smokers are working class. Every increase in cigarette taxes and every step toward making the product harder and harder to get is a step toward the further criminalization of working class life.
I think you're viewing the issue to narrowly, if anything these types of laws help working class people. As much as smoking may define 'working class life'...
What the hell? There are hordes of working class people who don't smoke. Probably a majority based on smoking rates in general actually.