However note that's comparing smoking not nicotine.

Inhaling smoke is very bad for you. Lots of people die this way in fires. Like, you cut the victims open and there is soot in their lungs. So, no surprise smoking cigarettes is also a bad idea even if it's less bad than being in a literal burning building.

Nicotine is poisonous, but so is booze. There may be other things about vaping which are bad for you, but it seems pretty clear that the main problem is the nicotine, which is why people are doing it anyway, so, fine.

Booze has another important difference though: The ones drinking aren't always the ones dying. That can be because they're impaired while operating machinery (e.g. someone has "a few beers" then drives home, next morning they don't remember anything about how they got home, but there's a blood red stain on the bumper and someone else is found dead in a ditch) or they might just become violent and cause deliberate harm to others.

That last article says, "The Centers for Disease Control and Prevention (CDC) suspects that exposure to THC, as well as a mix of THC, nicotine and vitamin E, an additive in many vape carriages, is causing serious lung injury."

Would you agree that exposure to THC, in itself, causes serious lung injury?

(Yes, I know, vitamin E acetate (an oil) in cannabis vaping products was likely the cause of a number of cases of lung injury.)

Also, "An FDA analysis of e-cigarettes from two leading brands found that the samples contained carcinogens and other hazardous chemicals, including diethylene glycol, which is found in antifreeze." Diethylene glycol is also used as "a humectant for tobacco, cork, printing ink, and glue. It is also a component in brake fluid, lubricants, wallpaper strippers, artificial fog and haze solutions, and heating/cooking fuel" as well as an industrial solvent. This statement is largely meaningless unless you know how much is in there: "The U.S. Code of Federal Regulations allows no more than 0.2% of diethylene glycol in polyethylene glycol when the latter is used as a food additive. The Australian government does not allow DEG as a food additive; it is only allowed at less than 0.25% w/w of DEG as an impurity of polyethylene glycol (PEG) even in toothpaste." (Wikipedia)

> According to the CDC, "cigarette smoking is the leading cause of preventable death in the United States...causes more than 480,000 deaths each year in the United States" while "excessive alcohol use is responsible for more than 95,000 deaths in the United States each year,

The question was about nicotine; it is not generally the _nicotine_ in cigarettes that kills you. That's what keeps you smoking them (to a large extent) but it's not what kills you.