The antebellum south ran on slavery, like the many societies in human history.
After the civil war, the Republicans wanted to punish the southern Whites, who by the way became Democrats, thus White resentment against Blacks was codified into law. Jim Crow is one example of Democrats in action. The rise of the KKK another.
Your are not going to like this. Civil rights laws are about anything but civil rights.
They are about ceding turf, property and power to certain groups and hamstringing others. Keep in mind for now, wealthy and affluent are code words for White.
Case in point: the community organizer and his posse are trying to regulate the racial makeup of cities, towns and communities that they feel are too White.
It works like this.
The community organizer and his henchmen decide that some community is too White and something has to be done. These communities will be forced to repent by providing, at their own expense, housing options for non-Whites.
link - This is one article for reference, there are others.
You note that there is no effort to desegregate Asian or Latino neighborhoods. It is a fact, that the day the government decides Latinos need diversity shoved down their throats is the day Latinos become Republicans en mass. Asians, a minority that does not see themselves as victims (thus they prosper), have no use for others invading their turf. This scheme is just about fucking with White people, not civil rights.
It is an example of Soviet style social engineering at its best. ha ha.
Civil rights law is being used to wage what amounts to a de facto race war, the spoils of which are taken by the use of civil rights law, not by arms. It is quite clever and Machiavellian at its best.