That is not correct.
>...Smith's first maxim of taxation, from Wealth of Nations, is that the "subjects of every state ought to contribute towards the support of the government, as nearly as possible, in proportion to their respective abilities; that is, in proportion to the revenue which they respectively enjoy under the protection of the state."
>Taxation in proportion to revenue is not progressive taxation. It is proportional taxation—in modern terminology, a flat tax.
https://reason.com/2023/06/04/adam-smith-wasnt-a-progressive...
In terms of Mill, I think he advocated for inheritance taxes, but in terms of "steeply progressive taxes" he wrote:
>...To tax the larger incomes at a higher percentage than the smaller is to lay a tax on industry and economy; to impose a penalty on people for having worked harder and saved more than their neighbours.
https://oll.libertyfund.org/titles/mill-principles-of-politi...
Must be nice to live in a time when this either was true or when people genuinely thought this was true.
If you’re worried that more income is being consumed by necessities, real disposable income is also on a steady upward trend:
So there is a disconnect between those real/disposable income numbers and the actual market realities, no?
Most of the middle class that “vanished” became part of the upper classes, at least as they would have been defined in real economic terms a few decades ago. Look at college graduation rates, or # of workers above $100k comp (real, not nominal), or the net worth of retirees, or …
America is vastly richer than it was even in 1990. Those riches may be modestly less evenly distributed—though there are demographic forces at work there as well as raw economic ones—but the median American along any number of axes is much, much better off.