Your information is outdated. The rate of accidental death among younger adults due to opioid poisonings has increased significantly in just the last few years.
My primary assertion was that life expectancy does not inform you about the quality of the US medical system. I focused on guns and cars, but adding opioids (and even lifestyle issues like obesity) doesn’t change my argument or the conclusion.
The point under debate is guns and car accidents being asserted as the leading cause of death. I continue to assert it is not true.