This is the slavery they are refrencing i think.

BYD did get caught using slave labor.

https://apnews.com/article/brazil-slave-labor-china-car-factory-byd-991c5670eefdd564fd465648b77b3869

Yes, there may not be child labor. But in places we cannot see, there are still black industry chains. A brick factory was exposed some time ago. They let some people with low IQ or disabilities work. They were not given masks, and the air was full of dust. They may work more than ten hours a day or even more. What is the difference between this and slavery? I just want to give this example to illustrate that there are still many black-hearted factories in society, and there is also the possibility of employing child labor. In China, young people who have not studied will choose to work in factories, but they must be at least 16 years old. If they are younger, they will not be hired. Back to the issue of BYD, although we are proud that it can be recognized by the world as a Chinese brand, and many people in China also buy it. But recently there have been some news that they blindly work overtime within the company, and have meetings after get off work, etc. Someone exposed the chat records within the company. We are all ordinary people. We just want to fight for our rights. Even if it is a big company, as long as it exploits people, we must oppose it.

That's what Chinese propagandists want you to think, there are way more people living in (borderline) poverty (per capita) than in the US.

Social media is being fed with a slice of mainland China, but anything beyond that is people struggling to keep ends meet.

No the rest of the world has been sleeping when China silently bought all the mines and harbors in the past decades.