While the name "EVALI" suggests that all e-cigarettes or vaping products were responsible, the reality was much more specific:
The True Cause: The outbreak was caused by vitamin E acetate, an oily thickening agent found in illicit THC products, not by nicotine e-liquids.
Geography: This was a localised "market problem" in the United States, not a global "technology problem". Countries with regulated nicotine markets and fewer illegal THC additives had virtually no cases.
The Chemical Conflict: Nicotine e-liquids are water-soluble and cannot be combined with oil-based vitamin E acetate.