Gender Bias Between Blacks and Whites in Music

As shown above in the graphic, in the years the Music World has faced gender bias between blacks and whites. In today's society, being omnivorous is a form of cultural capital. Cultural exclusivity is no longer valued as it may have been in the past and is more often a sign of ignorance rather than status. People in the years have been discriminating black voices, and i have a question, Does anyone and everyone who call themselves white have the right? Does it matter? I say that it most definitely does. Your answer depends on where you stand in the debate. And I also say that is curious that whenever white mainstream culture develops an affinity for a particular type of Black music, this music suddenly becomes 'universal'. Now, Black people and white people who value genuine Black expression are all told that the 'race' of the performer doesn't matter. 
Playing music is a good thing. The real problem is the claim that culture and history don't matter. That the sounds of 400 years of tragedy and triumph make no difference in the music. White wants to discriminate Black, but can white people play and sing the Blues? We can't deny that not everyone gets the blues in the same way as Black folk. Despite this, i never heard about a black discriminating a a bad white Blues voice.