The dictionary definition: So saying someone has "white privilege" is racist because the speaker is discriminating against people based on race.
Thats weird. Its pretty well known that better-looking people tend to get better gigs (romance, jobs, friends, grades) generally speaking; saying so is not denigrating better looking people, its acknowledging a fact of life. Nor does saying so mean that ugly people never do well or that attractive people never fail.
In Canada, white people also tend to get better gigs. In Muslim majority countries, Muslims tend to get better gigs. In Chinese majority countries, Chinese tend to get better gigs. None of that means Whites in Canada, Muslims in the Middle East or Chinese in Peking are universally successful or that brown people in Canada, Christians in the Middle East or Malaysians in Peking can never get ahead.
The reason for these better gigs for some and not others in the macro sense is due to "isms", sexism, racism, ect. Claiming this kind of discrimination doesn't exist because of individual examples that go against the overall trend is disingenuous.