Living standards in China have skyrocketed in the same period that they have collapsed in the West and stagnated in other developing countries like India. So what exactly is your point? That China is not a workers utopia? Or what? Can you not understand the difference between the trajectory of the Chinese working class compared to the US?
It’s very complex to compare income equivalents across such different countries and does not necessarily give an accurate indication of living standards anyway. The Chinese government has the kind of support that Western governments could only dream of. That is because for most Chinese people, they can see their lives are getting better and their children will have better lives still. Can the same be said in any Western country?

Applying the World Bank upper-middle income poverty line of $5.50/day to China would mean almost a quarter of Chinese still live in poverty.

13% = 25%? (from a very biased source too btw)

Despite China "still being poor" or whatever, the fact of the matter is that povery line go sharply down so China is becoming more gooder by the year. While in the country whose policies you support, poverty line stay same, not become gooder.