How is that relevant? This discussion is over junk food, a human fuel, a caloric substance.

Are you really asking why chips and snacks are thought of differently than a drug like heroin, or a drug delivery system like a cigarette? I'd say you're playing your hyperbole card a little too strong if so.

There's no bright line between food and drugs. Alcohol is a caloric substance, and also an addictive one. That's not to say that we shouldn't distinguish between potato chips and heroin, but it's not clear to me that foods are unproblematic by virtue of the fact that they're foods.