If you adjust by factors like obesity, state and drug use US is quite close or more or less on the same level as Western European countries.

Even if you don’t do that there is a higher variance in life expectancy between different US states than inside the EU. e.g. California is about on par with the Netherlands, Germany, Britain while Mississippi and West Virginia are slightly below Bulgaria (of course mainly because of drugs..). IMHO that kinds of makes generalized comparisons semi-meaningless.