"Well here's a chance for her to get some decent clothes at last!"
 "Just you watch, with all that Young money she's going to upgrade pretty damn quick!"
"We'll see---all the money in the world can't buy you taste if you weren't born with it."
From the quotation, we can see that there was racist behavior toward Rachel Chu by Nick's friends. They are like mocking the clothes that Rachel Chu wears because it only looks simple and simple. Just because Rachel Chu looks ordinary among rich people even though they have the same ethnicity.
B. Speaking Accent.
In addition, the author considers that in this novel, in terms of the speaking accent Rachel has a little problem with Nick's mother. Because it is considered he is not very Asian.
"What's she like? Is she very Taiwanese?" she asked.
"Taiwanese? Not at all. She seems completely Americanized to me,"
Astrid offered, before regretting what she'd said. How horrible, Eleanor thought. She had always found Asian girls with American accents to be quite ridiculous. They all sounded like they were faking it, trying to sound so ang mor.
According to the quotation above, the writer concludes that Rachel Chu is not considered good enough, although he has not directly confirmed this. Rachel Chu's American accent is because she has lived there since she was little, where she will learn to use the same accent as everyone else. Rachel chu's accent is considered not too American.
C. Social Class.