In 2016 a college educated "professor" doesn't understand how inappropriate, insensitive and professionally damaging dressing up in black face is?  If she were ignorant of racism and didn't understand the Jim Crow type of racism this represents, perhaps we could say she was just uneducated.  Her First Amendment right to freedom of expression is protected, as she is not in jail, but her employer deems such behavior as a detriment to teaching students.  Her colleagues and students see this as demeaning to them.  Years of doing the right thing can cause your entire life to change when you display bad judgment, like deciding to drive on the wrong side of the street and wondering why you are in the Emergency Room.  If her employer doesn't feel she can teach students effectively, why are we whining about our PC culture and expressing how this shouldn't be a big deal.  Racism in all of its forms is a big deal and those that don't understand it, likely never experienced it.