You may not be able to leave every job where you're treated unfairly, but in a perfect world, one without racism and sexism and the frictions associated with finding a new job, it's your sense of fairness that would let you know when it was time to move on.
Quizás no puedan dejar cada empleo donde traten injustamente, pero en un mundo ideal, sin racismo, sexismo ni problemas para hallar un nuevo empleo, es el sentido de equidad lo que les diría cuándo es hora de cambiar.