Here’s how it works.
Whites accept the leftist claim that whites are oppressive as a race.
But once this declaration of collective guilt has been issued, individual whites who aspire to prominence in society find themselves deprived of moral status, since they are part of this oppressive white race.
How does an individual white win back his moral status and resume his rightful role as a leader of society?
He does it by breaking ranks with other whites and announcing that he is not like those other whites. He is not oppressive, exploitative, bigoted, exclusionary, and narrow-minded. To the contrary, he is egalitarian, supportive, compassionate, and inclusive, and nothing human is alien to him.
Once he has made this leap to liberal virtuecrat, his social and career advancement henceforth depends on his being an enemy and a judge of his fellow whites.