I’d be willing to bet there’s a lot more genetic diversity in Sub-Saharan Africa than in China. There are a lot of different tribes there that go back a very long way as fiercely separate and distinct from each other.
Yeah, no doubt about that. China likely views them as sub-ethnicities. To the Chinese, they're all black Africans. And the Chinese are likely to regard them as the least productive, most dependent, most troublesome race on the planet.
China, "Imagine a world without black people."