I've personally found that saying critical things about the Chinese Communist Party on this website results in people quickly conflating said attacks on a government with a non-existent ethnic group (ignoring the fact that China has multiple ethnic groups instead of just the dominant Han majority) and suddenly you are flagged for being a bigot. It's pretty obnoxious behavior that is very dominant in Silicon Valley. I view it as primarily driven at the bottom by people who see all bigotry through a purely Western lens (and are therefore blind to the fact that "white" privilege is actually "dominant ethnic group" privilege and changes depending on where you are), don't know anything about China other than it being an Asian country, and equate criticizing the country as being Western imperialism.

From the top, it's money money money, because hey, who cares about Uighurs anyway, I just got a billion from some dude whose dad fought for Mao and is now a high-ranking member of the Chinese Communist Party. Now I'll go talk about how much I value diversity while my company is funded by a country which imprisons people because they are Muslim, or criticize the government, or, you know, tell the truth.