Black Culture, White Culture, etc. are clumsy terms and they smell of hidden agenda to me.

There is a distinct American culture, North American Culture and Western Culture… it is not divided along racial lines as much as it is geographic lines.

Racial components of culture are present in many groups but when someone uses the term White Culture I suspect it has more to do with making racism sound legitimate.

Cultures are nested and hard to divide easily. One simple illustration is the popularity of Rap and Hip Hop among white and black popular music fans.