Not that this is a complete justification of her thoughts about white people, but, if this is the infraction upon which you gleaned she is an "admitted" racist, then I disagree.
Also, we don't have to like the artist. Sometimes it's ok just to like the art.
She is a brilliant singer. Absolutely gifted in ways that not many, if any, are. If it takes me disagreeing with her politics, views, etc just to have her keep singing, then that is a bitter pill I'll swallow.