The Pruitt-Igoe Myth is a pretty accessible introduction to one of the most notorious public housing disasters in the US. It was available on Netflix at some point.

The name for welfare discouraging marriage is "the marriage penalty", but it's a general policy thing that people still argue about, so I couldn't find anything good about the old AFDC marriage penalties on short notice. https://www.brookings.edu/articles/wedding-bell-blues-marria... does a quick outline in passing.

It's a big topic. Some entries here:

https://www.city-journal.org/html/black-family-40-years-lies...