Earlier quoted context omitted.
Any metric that treats the US as one single data point instead of 50 should be taken with a grain of salt. Denmark has 6 million residents, Minnesota has 5.7 million. You can't compare an entire continental nation, whose 50 states all set their own 50 different health, education and public spending policies, against e.g. Sweden or Spain. That's a bad comparison.
Why do we judge other geographically large and politically divided nations like Canada, Russia or China in aggregate but the USA gets special treatment that conveniently provides an excuse for facing the reality that America is not actually a very good place to live unless you are very wealthy?
> provides an excuse for facing the reality that America is not actually a very good place to live unless you are very wealthy?
You are literally insisting here that aggregate data conceals differences between groups of people. The end of your sentence angrily argues against the beginning of your sentence.
edit: the reason we need to disaggregate is because we need to talk about Mississippi. We need to talk about black America. We need to talk about Chicagoland separately from downstate Illinois. We need to talk about black Chicago separately from white Chicago. Aggregation helps us avoid things.