The only reason black and white America are considered separate is that we keep them separate. Every news story that focuses on skin color when racism is not the reason is why it's there, dividing American culture between black and white is the reason why it's there. Our focus on race when racism is not present is why the division is there. The barrier is false because the only reason it exists is our focus on it.
The cause of the apathy is stems from racism (and to a lesser extent, classism), not a division that "doesn't exist" (it totally does)
The cause of the apathy stems not from racism innate in society (while I don't deny there are avid racists out there, having dealt with them myself, they are not sufficient in number to account for a society wide trend). The cause of the apathy comes in a mixture of two parts- the false barrier of black and white America, and classism.
The false barrier is responsible for the apathy of white America not because white Americans are racist against black Americans, but the division causes each side to view the other as alien and strange. One group is not as apt to help another group that they see as outsiders- this has less to do with race as it does a basic human instinct to protect their group first and foremost.
Classism, I argue, is the bigger cause of white America's apathy- or rather, Rich America's apathy.More accurately phrased, White America is not apathetic to Black America, Rich America is apathetic to Poor America. The rich in America, whether black, white, straight, gay, male or female, do not help the poor in America because of the acutely American idea that any person, no matter their status, can help themselves if they only work hard enough, that every American is simply a temporarily embarrassed millionaire. Meanwhile, the poor in America are falling behind in education and are sinking further and further into poverty and crime- black, white, latino, gay, or straight.
There's a difference between hating Iggy because she sounds "too black" and hating Iggy because she appropriates the shit out of hiphop culture and people eat it up
Cultural appropriation is a flawed idea, and very Americocentric. Disrespect of a culture, mocking it and wearing it without a thought of its history or meaning is bad. It's a really douche move. But it's not disallowed, and it's not a reason to bar people from doing it. However, respecting a culture, learning about it and partaking in it is never a bad thing. In fact, it's a very good thing! This is why I believe it's a flawed idea- the idea of cultural appropriation never distinguishes between respectful partaking of a culture and disrespectful trashing of it. It encourages separation and division.