I agree with her that reverse racism does not exist in the way she defined it but racism isn't just about oppression and power.  It's also about how you treat your neighbors, your peers and everyday people.  Her taunts are directed specifically against white people.   If a white person made those comments substituting black or Indian where she used white, they would likely lose their job and be subject to great public criticism.  Maybe this incident will teach her to think a little more before she posts.