Why are white people ashamed of their race and bite the black style?

The problem that I have is that they never even acknowledge what they take from us. They will just do it and act like they don't know where it is from which makes me mad because then it looks like stealing. Blues, Rock and Roll, Country and Folk come from us but you would never know because they act like it doesn't. They do the same thing with clothing and foods. Like they all just fell from the sky. Give credit where it is due that's all I'm asking.