When the sentiment turns into "you white people" as being "all white people" are racist it is a form of racism. Going into restaurants and harrassing people that happen to be white about what you feel is injustice for being treated badly for your color is assuming anyone who is white is racist. Plenty of people who happen to have white skin are NOT racist and they understand that people of color have been treated horribly. And if this niece said something considered racist, instead of yelling at her it may be better to help her understand the gravity of what she posted or said on facebook.

I was thinking more of the age and how impressionble a young teen can be. If the parent is only 30 the child must be pretty young yet. That's what I was focusing on, how impressionable a young teen/individual can be. I gave an example of how a young teen can pick up on bad behavior and repeat it thinking the behavior is ok or normal when it's not. You can get angry and report her and respond negatively, or you can see it and find a way to explain why the behavior is bad and what she thinks is normal or right isn't.