These is great analysis and reflections on a very problematic situation. From what I’ve studied I could add a few aspects to share that could added to it. Social Security was originally intended for white men in the managerial class and professional class, such as architects, with black Americans being exclusively left out. This was intention. Labels are very damaging and sometimes have to look beyond them. What I mean here is that laws are written in Congress and they not/not written by Presidents. You might find that obvious, but the New Deal was written and passed by Southern Conservative all-white male Democratic from the Solid South who had a lock on congress and screening, writing, rewriting, and editing all of the New Deal programs. Since this solid south conservative block had not opposition in their home states, since they banned all black Americans through “effective” new state constitutions (effective from their perspective, destructive from black American registered voters perspective), they can a dominate control for the first 8 years, which mildly sank after.
That meant they applied their principles of white supremacy to all the bills (don’t blame me for that label, they called themselves “white supremacists” openly and said on the floor of the Senate even in the early 1940s that they were defending the principles of “white supremacists” when trying to stop black American soldier in the war from getting mail in ballots to vote). So the federal housing mortgage program federally banned black Americans from accessing mortgages through ‘redlining’ which you’re of course aware of (the legal term found in this federal legislation was “harmonious” neighborhoods. Thus Wagner act on unions stopped black American agricultural and domestic workers from organizing in the South for better pay and working conditions, targeting this septic group from being left out. Combined with the other aspects you mentioned, that meant black Americans in the region, still a good 65 percent or so, millions, were locked out by design of The New White Deal.
The president knew what was going on, but he signed only signed them, not wrote them. But he was a “Bourbon Democrat,” the historically rich Southern planter class of white supremacists even though he was from the New York City and born into a rich family. He had his own ambitions and grand coalition which made him president for life (4 terms, died in office which prevented him from running for a fifth).
Around May 1964, that “Solid South” Conservative wing quit the Democratic Party (after 120 years, that’s minute the four from the Civil War) and joined the Republican Party, or rather just move in and took it over since they had already banished the black Americans through disenfranchisement starting in 1890 to 1908. Today we know them as the MAGA Conservative-wing of the Republican Party, and if they don’t continue to get their way in the party they will quit again (but of course the rest of the GOP since 1965 have become poisoned by their ideology).
I won’t mention another vital cause of changing the higher rate of black married households to the lower rate—namely arresting millions of black men and jailing them from 1980 to 2001 (and beyond, and starting a bit earlier perhaps) under the great incarceration period or crack cocaine period. You can’t keep the black men in the house when the police are continually locking them up in jail for loitering and handing out some mandatory decade or life sentences for the weight of the crack rocks or the green Buddha. The 1986 law passed by Reagan on mandatory sentencing was devastating to the black community.
So yeah, excellent piece and details. I object to labels (the New Deal, the Great Society) mainly because white male legislators and presidents signed them then named them to make themselves look great, like a wonderful benevolent father, to the large white constituent and thus often hide the white racist devil in the details.