“The poverty rate among black married couples has been in single digits ever since 1994.
People make marriage vows, for better or worse, for richer or poorer, etc., but it's generally only the wealthier and better-off couples who are able to stay married, keep living in the same household, presumably with their children.
If the money isn't there to keep the roof over your heads, your marriage is over and the state offers sex-segregated communal housing to poor people, because a man who doesn't adequately support his wife is deemed worse than an infidel, and wife on her part is effectively a prostitute.
There's a marriage on paper, but if there isn't quire enough money to get by, the pimps and bosses fire the man from his work, foreclose on the home, and rape his wife, turn her out on the street, and raise the kids as bastards.