I wonder if this is something that changed over time. As in preservatives and all sorts of chemicals being added to tobacco or alcohol. For example, I can smoke Japanese cigarettes without a problem. I've smoked Vietnam era MRE cigarettes, Old Ukrainian unfiltered cigarettes. But I can't smoke US made ones since around 2007, they make me sick and taste like ash.

Did you read that paper? I don't believe it supports your argument.

The mechanism by which smoking causes e.g. lung cancer and the significant rate at which it does so is well understood. I'm not convinced the same can currently be said of alcohol.