[carboncopy]

In the above map, those areas are not marked with the "unequal" color, can you share your source as a counterpoint?

Edit: the arstechnica article states DC is the most unequal place in the U.S. It appears there is a disparity between the two sources.

[didgeoridoo]

https://en.m.wikipedia.org/wiki/List_of_U.S._states_by_Gini_...

That map is by county, while most inequality in the US is concentrated in the cities; the most important drivers of state-level inequality are thus hidden. It is not a very good map for this purpose.

[carboncopy]

Indeed, though your map is even lower resolution than the previous one.

I can agree that neither map tells the whole story, and the GP's premise is strained at best.