I agree with the POV that tobacco, in any form, is probably not good for the smoker.Just llike hamburgers, beer and donuts. That said, is there some limit at which the body can tolerate this "insult" and healthy cells can reproduce? Wouldn't this information be useful to smokers?
The answer is probably different for each type of tobacco use. Personally, I don't see any reason to believe that moderate use of pipe tobacco is a significant health threat. And there's anecdotal support for the idea that pipe smoking has health benefits, such as relaxation.
The point about processing tobacco makes use of various additives, preservatives, colorizers, taste enhancers etc is often mentioned without making the bridge to food, the processing of which uses many of the same additives. Granted, eating food that includes PG, for one example, may be different from burning and inhaling residue from this humectant or simply sipping it orally and exhalng it. But the current politics of the matter is to ban smoing without bothering with such fine intramural distinctions.
You can learn some amazing things about processed food simply by learning to read ingredient and nutrition labels on the pakaged food your family eats, particularly on matters like artificial sugars. If you want to know why Americans tend to be chubby and prone to diabetes, you need only peruse these labels. It's not a mystery. In fine print and carefully spun, yes. But a mystery, no.
I do the grocery shopping for my family and, the other day, had both ice cream and good ol' baked beans in the cart. Waiting in the check out line, I perused some of the labels. I didn't expect the ice cream to be a health food. But I was surprised that both the beans and the chocolate ice cream had the same score in the "sugars" box -- 12 G per 1/2 cup serving. Remember Dixie, Cups? They used to be half cup size. No one since has eaten only a half cup serving or either ice cream or baked beans.
The lumping together and harrassment of all types of tobacco users is, imho, another government backed public relations effort intended to divert and distract the public. Meanwhile, the content of processed foods is just beginning to get some overdue public attention.