https://en.wikipedia.org/wiki/Household_income_in_the_United...
Lowest infant mortality rate at all time:
https://www.macrotrends.net/countries/USA/united-states/infa...
I'd also say that we're lucky to be alive at a time when you can make a very generous salary without having a degree as a professional software developer (source: myself).
I think there are a lot of people who overextended themselves getting a degree with little to no monetary value but that's definitely not the whole story for this generation.
"According to the CBO, between 1979 and 2011, gross median household income, adjusted for inflation, rose from $59,400 to $75,200, or 26.5%.[18] However, once adjusted for household size and looking at taxes from an after-tax perspective, real median household income grew 46%, representing significant growth."
And: "Total compensation's share of GDP has declined by 4.5 percentage points from 1970 to 2016. This implies that the share attributed to capital increased in that period."
Also: "Measured relative to GDP, total compensation and its component wages and salaries have been declining since 1970. This indicates a shift in income from labor (persons who derive income from hourly wages and salaries) to capital (persons who derive income via ownership of businesses, land and assets). This trend is common across the developed world, due in part to globalization.[16] Wages and salaries have fallen from approximately 51% GDP in 1970 to 43% GDP in 2013. Total compensation has fallen from approximately 58% GDP in 1970 to 53% GDP in 2013"
The whole picture here is a pretty mixed bag and not at all a case for how median wage to the average worker is phenomenal.
[1] https://news.stanford.edu/2016/12/08/todays-children-face-to...
[2] https://www.cnbc.com/2019/01/11/millennials-households-earn-...
For example, this one shows net worth broken down by age range. https://en.m.wikipedia.org/wiki/File:U.S._Income_and_Net_Wor...
You can see that the median net worth of households below 35 gained a paltry 4% in net worth, while the 35-65 cohort gained 2-6x times that. If you look at the mean net worth, it's even more skewed.
Median household income is very marginally higher than ever, while debt is substantially higher. Cost of living isn't inclusive of the cost of education that is probably the biggest economic burden unique to millenials.
No one is debating that you can (momentarily) make a lot of money as a software dev without a degree. It still accounts for a small portion of the economy.