FWIW, I have never smoked a cigarette in my life. (But did grow up, as the child of anthropologist parents, frequently sitting near wood cook fires in small smoke-filled huts, which is at least 1000x worse than any second-hand cigarette smoke you could possibly get outside.)

There is a fundamental difference between someone minding their own business on a public street, not harming anyone else, and someone else putting on a show to shame them based on gross mis-assessment of risk.

I’m not sure what to say here. You have reiterated that there is no health issue, but my point is that whether or not a given behavior presents a physical harm to others is not the sole standard by which public behavior is governed.