Cindy has it exactly backwards, of course. It's not the incarceration that causes the illegitimacy. It's the illegitimacy that breeds the criminality. The lack of morality and self-control--that's the problem. Children growing up without structure and discipline--that's the problem.
Keep your pants zipped and your legs closed until marriage. Drop the gangsta rap and start hitting the books. Hard work and delayed gratification. That's the ticket to success.
Until blacks stop making excuses and blaming whites . . . until they start looking in the mirror and stigmatizing the bad actors within their own community . . . the black illegitimacy-crime problem will keep perpetuating itself.
Lots of blacks have figured this out. Actually, 40-50-60 years ago, the black community as a whole was doing better at this than they have been recently.