And that largely stems from the fact that Han culture has been mostly stable and very successful for most of those thousands of years. They only got a blip of doubt in their total confidence of racial superiority when American-European culture suddenly lurched ahead economically within the last 200 years. White people earned temporary, grudging status as near-equals by making a colossal pile of money while building massive new empires around the world, while China was busy still being the best China that ever China'd.
The thought in the back of the Han-Chinese mind is that the success of the West is but a temporary condition, and that once the technological gap closes, China will once again be the undisputed center of the world, populated by the best, smartest, and most sophisticated people. There is almost zero self-awareness of their own racism, and barely an inkling of consideration that racism might even be bad.
China is 92% Han. The remaining 8% are largely sequestered in poor regions of the interior, like the Indian reservations in the US, so any city you are likely to visit for business or tourism will be 99.9% Han. And if you are not already Chinese, it is nigh-impossible to gain citizenship without being a full-blooded Han (tragically born into the wrong country) or by marrying a native.
So don't pin your hopes on being able to follow the money if China becomes the dominant global economy.