My chinese in-laws can comfortably live there without speaking a word of English because there's that much chinese cultural infrastructure - from church groups to supermarkets to gardeners, handymen, doctors and real estate agents whose _entire clientele_ is 1st-gen chinese. Chatting with the neighbor in chinese about so-and-so's grandson is a fairly normal thing.
In contrast, my wife would consider the chinese community in SF heavily "americanised" - Similar to how Sao Paulo has "nihongakkous" (immersion schools for 2nd/3rd gen japanese), some schools in SF have "immersion" programs. These basically indicate that the community as a whole doesn't have cultural momentum to imprint onto new generations. By contrast, at my kid's kindergarten in Toronto, the teacher would at times actively have to discourage kids from speaking chinese in class (when it would be disruptive/exclusionary to the minorities - caucasians - of the class)!
WRT VC culture, my understanding is that in China, there's a great deal of literal politics (IIRC, Didi and many other prominent startups were owned by family members of prominent politicians), but that culturally speaking, "success" tends to be narrowly defined as doing well in school and getting a socially desirable job after that. I'm told that indians have similar cultural pressure to raise to management positions. (Women have it even worse, with pressure to get married in their 20s, give their parents grandchildren, etc). I feel like in SF, tech workers are heavily immersed in liberal ideas (e.g. risk taking, individualism) and tend to "detach" from their birth culture to a much higher degree than in Toronto.
As for Chinese taking risks, I think you have to look at the alternative safer investments that basically don’t exist, you have no choice but to take risks in China, or in most other developing econonies for that matter.
I think the author is pointing out that being a Chinese/Indian immigrant is in conflict with risk taking.
You don't have to look too hard for this. Most Chinese/Indian immigrants gravitate to low-risk jobs, specifically at larger companies, usually for visa/immigration related issues.
Seems to me that the risk-aversion is caused by their (not-yet-)immigrant status, not their cultural roots.
Aren't a lot of immigrant tech talent in Silicon Valley Chinese and Indian too? Or maybe even the majority?
Besides, China has a very vibrant VC culture, second only to the US. Therefore being Chinese and being risk taking are definitely not in conflict.