Um... really?

When I Googled life expectancy by ethnic group in the United States, it gave me the following numbers:

Asian: 85.2 years

Hispanic: 81.3 years

White: 78.4 years

Black: 74.0 years

American Indian and Alaska Native (AIAN): 70.1 years

Along with a source. (https://www.kff.org/racial-equity-and-health-policy/racial-d...) (Note: Based on the source, these numbers are for 2023.)

Overall, life expectancy in the United States in the last few years is around 79ish per the sources listed here in this Wiki article: (https://en.wikipedia.org/wiki/List_of_countries_by_life_expe...)

This means that the average life expectancy of white Americans is actually slightly below the average life expectancy of all Americans.

Incidentally, while a lot of developed countries do not track life expectancy by ethnicity, the UK seems to have a few some studies. (https://www.ons.gov.uk/peoplepopulationandcommunity/birthsde...) Though the data is very old (2011-2014), and the data is broken out by sex with no summaries, whites actually fare the worst. Black African females came out at the top, with a life expectancy of 88.9. I asked Google's search what the comparable black American female life expectancy was in 2011, and it gave me 78.2, along with a link. (https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6244a8.htm)

Our overall ranking generally is below all "developed countries" that I can see, which range from Germany (~80) to the ~84 of "developed" countries like Japan, Switzerland, and Sweden (along with a few countries still classified as "developing" like Kuwait). It's not completely terrible, but considering how much the United States spends on health care, that's quite a poor value.

There are multiple identified factors for explaining life expectancy, but access to healthcare is identified as a very significant factor. In a system, like America, that is very expensive (likely due to highly inefficient, over-bureaucratic, overly complex, and over-quasi-monopolized systems) and without universal coverage, it follows that those who are poorer may not have the same access to healthcare and may succumb to entirely curable illnesses. So I don't think it's a coincidence that the racial breakdown above almost matches the median ethnic household income (the median white American household earns more than the median Hispanic household, but elsewise it aligns).

On infant mortality, at least one link I found -- https://www.healthsystemtracker.org/chart-collection/infant-... -- which adjusted data due to the reported difference, and still found significantly higher infant mortality in the United States. Though the data is a little old (2016).

Cite the source for "access to healthcare" as a "very significant factor" in US life expectancy? We have pretty good numbers on the mortality cause differences between the US and other countries and they don't align with this claim (unless you're doing some bank-shot argument about how access to health care makes our car crashes more lethal or something).

You'd want to be looking for a scholarly source that puts numbers on this. It's been done! As I noted elsewhere on the thread, the study we're commenting on is based on 1990s numbers about differing mortality of the uninsured. But here you're looking breakdowns of all mortality causes and tying them to insurance, a trickier proposition. Will be interested in whatever you come up with.