She's mad because the 'White People's Country' welcomed her Indian immigrant parents with open arms, allowing her to obtain the coveted US citizenship, and providing her with (likely) free grants and scholarships due to her ethnicity and giving her a mostly paid-for pricey post-grad education that many White People cannot afford. Then, her ethnic diversity allowed her to be considered to fill those 'special diversity hire' positions in very elite companies at very high rates of pay, elevating her above others who received no such favors.
(Tell me again why she hates White People now??)

Per the wiki:

"A first-generation Indian-American, Rao was born in Richmond, Virginia. [1][2]

She received a bachelor's degree in history from the University of Virginia in 1996 and went on to work as a journalist and television producer for CBS affiliate WUSA in Washington DC and Fox News affiliate WSVN in Miami.[3]

In 2002 she received a J.D. from New York University School of Law and took up a clerkship under Third Circuit court judge Dolores Sloviter between 2002 and 2003.[3] She was then an associate in corporate law at Cleary Gottlieb."

Following her clerkship with the judge, she published a toxic novel that appeared to be a thinly veiled criticism of her employer. Here is what they said about it:

In 2007, Saira Rao's first novel was published.[6]

'Chambermaid' concerns a recent law graduate called Sheila Raj who is a law clerk to Third Circuit judge Helga Friedman, described as a "sociopathic, homicidal, bipolar jurist" and a "toxic bitch."

Rao had herself been a law clerk to Third Circuit judge Dolores Sloviter, and other characters in the book were also seen as having real-world counterparts.

"Rao began writing it while working at Cleary Gottlieb, but left the firm in November 2006 after they learned the topic of the book. For a lawyer to discuss a judge so unflatteringly, even in a fictionalized manner, was considered at least unusual and Rao attributed her desire to write the book partly to precisely that informal code of silence."

Then she ran for office against a well-liked incumbent who happened to be a White Woman in an area of primarily White people. She lost.

Saira Rao forgets that personality, likeability, attractiveness and cooperation with others matters in many occupations. Her angry, toxic, entitled persona overwrites whatever other talent she possesses.

She must blame her loss on something, obviously White People fits the bill.