African American

When they go low, we go high.

Have her get a new job with her head held high. If she has friends at the current job, have them give references. Make sure she says that it's because of salary, and hopefully she can get something paying more. If she wants to say something at the exit interview, that's her decision, but "Fuck y'all"... nope. Go high. Have them thinking that they lost someone valuable.