Nicotine doesn’t cause cancer. (It’s true — look it up.) They should be swabbing for tar and other burnt particulates found in carcinogenic cig smoke if they insist on being a nanny state. The e-cig users and nicorette gum chewers are going to be pissed.
You could add snuff users to your list of the aggrieved.
Not only is nicotine non-carcinogenic, it is also not very addictive at all, unless its consumption is accompanied by other particular chemicals (MAOIs). Basically, nicotine is roughly similar to caffeine in terms of health and addiction risks, although nicotine has many more positive health effects than caffeine does.