Doesn't matter. If Blacks had a shorter lifespan than Whites then Barbadians would live shorter lives, not longer.
Life expectancy in US drops one full year And sorry it's 77 years, not 75 as I said earlier.
All residents in Hong Kong are covered by their universal system, modeled on the NHK (remember that Hong Kong was a British colony). The private insurers cover what the universal system does not - things like private rooms, dental, quicker care for electives etc.
WHO never said either of those things, but it's irrelevant anyway, other than the fact you likely just made that up. There are organizations other than WHO that measure health care quality by country. Go ahead and try to find one that ranks the US higher than Canada. Can't be done.