Admittedly, I'm not arguing it any one way or another. I'm just presenting what I think is perhaps an interesting argument that highlights how the whole concept is somewhat arbitrary and ambiguous, resting more on ones personal moral positions towards a thing in particular than any real underlying logical justification shared across similar concepts.

Obesity does too. You are consuming sometimes twice as many calories as what is needed to survive. You put strain on medical facilities as well, and increase pooled costs of healthcare. Same social ills a smoker puts on you. Second hand smoke isn't really a thing anymore with indoor smoking bans.