It’s nothing to do with “me”, it’s more to do with reality. There are plenty of studies which show that a lack of sleep leads to significant health issues. Likewise, yes, air pollution also does. But we’re not talking about coal power plants here, we’re talking about people smoking cigarettes. There’s tons of evidence which shows that they are essentially harmless to others if smoked outdoors. That’s why preventing people from getting sleep matters, but smoking outdoors does not.
I’m not going to engage with the other thing you wrote, except to say that OP said that smoking should be banned with no additional qualifiers, in my view, everything else they wrote was explaining why they felt that way. I’m not going to argue that point though, because it’s not relevant.