You're entitled to an opinion. Even racists and JTRIG operatives have opinions. Quite often, racists are quick to dismiss black people's allegations of racism because they lack empathy... even when confronted with video evidence.
One thing I noticed while living in China is that it's not usually Africans and African Americans who complain the most about Chinese racism against black people. No, sir! It's usually non-black racists who have experienced discrimination for the first time and finally found an opportunity to camouflage and justify their own racism against blacks, Asians, etc. by using the Chinese as a canvas on which they can paint a narrative.
A person can travel to China (or elsewhere in Asia), date and marry the locals, have mixed race offspring and still have strong prejudice against Asians or other people of color. See for instance SerpentZA and Laowhy86 and their reactions to the physiognomy of their own children. And SerpentZA's expressed opinions on post-Apartheid South Africa.
Are there racists in China? Of course there are. Is there rampant discrimination against non-Han people. Yes! People of all colors can be racist or ethnocentric. But is Chinese anti-black racism worse than American anti-black racism as the recent narratives have proclaimed? No! An emphatic "NO"!
In China, most foreigners experience racism at some point during their stay. For a non-black person who has never experienced in-your-face racism, this has to be a jarring and disorienting experience.
For a black person in China, particularly an American black person, it's just "meh" racism. The cops aren't trying to murder you for simply existing and no one will try to lock you up in prison forever for not being the right color. Granted, as in America, some people may not date you and some employers will not hire you due to the color of your skin, but the vast majority of Chinese will be warm and friendly toward you and they won't clutch their pearls when they encounter you day or night.
So, in my opinion (as a black man) living in China was quite a refreshingly meh and relaxing experience. "I didn't even have to use my AK."
Apparently, your experience varied and you hold a different opinion about the relative toxicity of Chinese and American racism. But, as you noted, we are different people. Welcome to racism for the inexperienced... it hurts, doesn't it? I feel for you but I will not apologize for living a different experience than explained by your programming or your privilege. If that makes me a "troll", so be it.