The myth is used as a mechanism to transfer rights, opportunities, power, and money from the allegedly privileged group to allegedly unprivileged groups.
Which the alleged UGs properly perceive as a royal scam that they wholeheartedly go for, laughing all the way since they know in their own countries such a gig would be DOA.
White privilege was created because the accusation of racism lost traction. There is no loot left in the accusation, so now the Race Pimps had to come up with a new scheme to shake folks down.