Some socialists insist that anyone who must work for a living is "working-class."
This idea is coherent. But it also helps well-off professionals disguise their class's particular interests as those of all working people.
For example, under Biden, the left effectively demanded debt relief for Harvard MBAs in the name of "the working class." Today, almost all Democrats want to raise taxes on the super rich -- but *only* the super rich -- in the name of "the 99%"