Purely as an outsider looking at the regular China tech posts with interest over the years, it feels like there's a common thread, where US tech giants look at

Purely as an outsider looking at the regular China tech posts with interest over the years, it feels like there's a common thread, where US tech giants look at the Chinese market and rub their hands with glee, expecting to simply place an office there and integrate as they do everywhere else, only to find an existing ecosystem they seemingly have no knowledge of - and instead of studying that ecosystem and improving their product globally they bow out when China doesn't seem to be as "easy" as first thought. Obviously, this is a gross over-simplification of the situation, but it feels weird that FAANG-size tech companies seem to all be making the same mistakes by embedding their services into a packed marketplace and being arrogent enough to expect to beat pre-existing competition. Outsiders may claim (and rightfully so) that China has a bias towards Chinese companies, but this bias doesn't seem to be the reson why the likes of Amazon and Google fail in China.