What percentage of founders get replaced as CEO? It is very common for VC's to want what is often called, "adult supervision" once a company reaches a certain size. Even Google (home of the archetypal tech bro founder Sergey Brinn) ended up hiring Eric Schmidt once they got to a certain size.
I'm sure there is anti-asian sentiment (or at least discomfort) out there, but replacing a CEO once a company gets big enough to need it is absolutely routine.
Founders get pushed out by VCs all the time.