[1] https://www.census.gov/library/publications/2020/demo/p60-27...
I'm sure it's possible to construct a measure which will show that poverty went up - as it's equally possible to show the opposite - but either will mostly likely be overfitting, i. e. hand-picking data to prove the desired point.
[2] https://en.wikipedia.org/wiki/Poverty_in_the_United_States
Poverty is definitely definitely going down, not up.
What if one argued that some enslaved people in 1850 Georgia were better fed than before they were kidnapped from Africa. All ok then?
And why should rich people complain if there were a revolution and they were relegated to the middle class? The middle class of 2021 live longer and have better healthcare than the kings of even 100 years ago. What rights does anyone have to anything? By what reason doed anyone have a claim to injustice?
Maybe it’s possible to have a kind of inequality where the rich get richer without the poor getting poorer (although I suspect it would just mean that the purchasing power of a dollar falls even though the poor have as many dollars as they had before) but in practice in America I think we have the kind of inequality where the rich are getting richer and the poor are getting poorer (and more numerous).