You:

The inflation calculators you use are wrong

Also you:

Except that I'm not focusing on "inflation."

Look at the 1960 figures. That meant that a high school graduate with no particular skills could live a pretty good life and support a family working 40 hours a week. Today it's common to require two incomes to keep a family going.

Cool, but it's helpful to state your premises up front. That situation was viable well into the 70s, after which Reagan-era policies completely decoupled real income from productivity, and started to fall apart. By the mid 90s it was all but gone.