Mean, yes, median, less so.
> but mean statistics point to a wealthier American population at all levels today than any time before.
“mean statistics” don't tell you anything about “at all levels”, and are misleading because of the increasing top-heaviness of the distribution.
Median quite so . Every class of American is getting richer, just not as fast as the ultra-rich.
Even leaving aside that outside of abject, starvation-level poverty, relative deprivation is a bigger contributor to disutility than absolute deprivation, such that everyone getting richer in absolute terms but the already rich getting rich faster would actually be a bad thing even if true.