Black-white marriage accounts for 3% of all marriage today, less so since Loving v Virginia. This is a pointless comment.Increased incarceration: Men in jail aren't making babies generally.
Interracial marriage is much more common and accepted than it once was, and anyway, what goes for poor blacks goes for poor whites as well.
This argument is really a dead end for two reasons, single teenage pregnancy has been declining, the births rates for Blacks and Whites are in decline......and if you want less single parent poverty, then call for higher wages for low-mid income earners of ALL households. Over the last 30 years the lowest quintile as had negative wage gains.I'm not so sure that the financial help available to single mothers can be dismissed as a factor, perhaps a major factor.