More a comment to folks in general...
From Colorado, I wound up in college in the Bronx in the early 60’s. The bars (almost all Irish) on Webster Avenue all had the picture of JFK very, very prominently over the bar. Very Democrat.
Many, many of those people have since moved out of New York and have joined non-ethnic (compared to a big city) America. The total devotion to one man or one ethnic is long gone for them. They outgrew it.
Right now, thinking of DC, the ethnic solidarity in DC and elsewhere is still fairly strong. But enough folks are leaving, for jobs or marriage or whatever and are moving into not-so-black areas. It’s not fast, but it’s happening. At a certain point, solidarity dissipates and people become individuals. I guess with many of the big city black communities that aren’t just poverty/crime sinkholes that this process will be very noticeable in the next 10 years.
This solidarity is not forever.
This map mashes the election map with a map on cotton production in the 1800's The black dots represent 2,000 bales of cotton.
The land was really fertile along a band across the south. Plantations formed up along that band, and there was a really large poor black population that is there to this day.
I got this map from http://www.vigorousnorth.com/2008/11/black-belt-how-soil-types-determined.html
The fertile area was caused by an ancient shore line.
