> What is, and has been, disappearing is a broad-based, stable economic system that benefits the masses.
Median income hasn't eroded. Real unemployment is again nearing historic lows. Median wealth hasn't eroded.
US median wealth remains higher than Germany or Sweden. Which, if you buy into the propaganda about the US (vs eg German worker protections and or Sweden's social safety net), that outcome should be impossible.
And for the US that's all despite one of the greatest demographic changes in world history, in which the US middle class has been massively shifted by an influx of low education, impoverished third world immigrants (which is the opposite approach of most affluent nations; for example Canada or Australia, they hyper restrict immigration based on scoring systems meant to keep poor people largely out, focusing instead of highly qualified immigrants that can immediately contribute to the welfare state tax base).
The fact is, the US has done extraordinarily well against that demographic change backdrop when it comes to the middle class and median figures. And this factor - dramatic demographic shift for the US middle class and median - is almost universally and intentionally ignored in the name of propaganda points.
It turns out that if you flood a country with tens of millions of poor people that don't speak the primary language, it might downward drag on the figures you see in the middle class and median (ie it pushes downward on all of that until the recent immigrants have enough time to adjust and gain positioning in society: gain education, gain income, gain wealth, establish careers, leading progress into second or third generations).
It can take generations for someone moving to a new culture, with little formal education, without the ability to speak the primary language, with no job or wealth supporting them, to get anywhere.
Want to see this effect in action? Look at the median white household wealth and income figures, today vs 1970 / 1980 / 1990. In 1980 the US was around 5%-6% hispanic for example, the middle class was almost exclusively white. Today the US middle class is increasingly hispanic, and that trend will continue aggressively for decades to come. Now do the right thing and account for that when talking about how well the US middle class has done over the last 30 or 50 years (it's not the same demographic, it's not the same group of people, it has changed).
If you move from Honduras to the US in 1993, previously living a third world lifestyle with minimum formal education and no ability to speak English; and then you lift yourself to the level of the US middle class by the 2010s, how do you account for showing that radical improvement in the US figures as it pertains to the middle class, if all it shows in the US figures is supposed stagnation (when what has really happened is the prior middle class demographic has moved upward, while formerly poor hispanics have moved in to the US middle class slot)?
If you don't account for the epic scale demographic shift, then what you're proposing is hyper misleading.