China would rather see hundreds of millions of their own people dead and/or suffering than to have a middle class develop.
A thriving middle class wold eventually lead to the downfall of the Communist regime and they know it which is why they have rolled back so many of the reforms that were enabling one to begin and grow.
Long term thinking in the US is limited to months, years, maybe even a decade or more but the Chines think in terms of centuries and millenia.
On our best days we’re playing small ball while they are playing for the long game.
We’re so addicted to Chinese manufacturing they know they can win the long game with us with ease.
Xi is in no danger, he’s made himelf president for life and purged the party of his competitors or anyone who could threaten him.
There can also be no mass armed uprising to kick him out since he controls all the guns and evryone with access to them.