[stametseater]

This is a problem in US tech companies too. I've seen many instances of teams being run as ethnic enclaves. In a company that is 50% American nationals, what are the chances that a set of three or four teams under one man would have a total of 30 out of 30 Chinese nationals by pure happenstance?

If the other half of the company were Chinese nationals (which certainly isn't the case) a team of 30 by pure happenstance would be 0.5^30 = 9.3 * 10^-10. Real fucking unlikely, yet I've seen that scenario happen more than once. Nobody says anything about it of course, everybody knows how HR would respond.

[differingopinio]

I know of a large Chinese tech company which has research labs in the U.S. and these research labs are 100% Chinese. They're basically able to bring over whoever they want from overseas. What are the odds that there are ZERO U.S. citizens able to do those jobs? And even if all of these people are also U.S. citizens (I know for a fact they're not because I know some of the people in these labs), what are the odds they all ended up being from one ethnicity?