Cigarettes kill 7x as many as fentanyl every hour, day, week, month, and year.
One is available without prescription on every streetcorner, with use allowed in public in proximity to others, and the other is a public health epidemic.
That being the case doesn't negate the fact that cigarette users are not turned into some version of the walking dead but who'd do literally anything for a fix.
Tobacco has a lot to answer for but it isn't the same kind of issue at all. It doesn't destroy communities so directly.
One is available without prescription on every streetcorner, with use allowed in public in proximity to others, and the other is a public health epidemic.