Understanding Out-of-Wedlock Births in Black America

While studing I've been thinking a lot about a number you see invoked whenever discussing the state of the black family--70 percent of all births among African-Americans happen out of wedlock. You often see this number invoked to show the moral or cultural decline in the black family:

For African-Americans. That's embarrassing. And you know, in the entire recorded history of the planet, there has never been a greater voluntary abandonment of men from their children than there is today in black America. Never. I mean, when men went off to war, they had to go off to war. That wasn't voluntary. But never as great of voluntary abandonment of children by their fathers than in black America today.

Why don't the NAACP and similar organizations take all the money they use to challenge and complain about the standards that their groups (in the aggregate) don't meet when it comes to university admissions, selective high-school admissions, school discipline, mortgage loans, police and firefighter tests, felon disenfranchisement laws, employment policies that look at criminal records, etc., etc., and use that money to figure out ways to bring down the illegitimacy rates that drive all these other disparities?

Just as often you see it invoked by black people themselves in much the same way. What undergirds all of this is the sense that the black community of today is somehow deficient in a way that the black community of yesteryear was not.