What is wrong with my friend?

Why do my friends always have to bother me and Talk about our teachers?Why do they talk about white people like their different and were better.Were not black's and white's are the same.Just like white's call us Negroes we call them Cracker's but it is not the right thing to do.I like my teacher a whole lot and the other teachers as well I also like white's as well as i like black's.Why is this rebellion going on?