I'd carve off an additional nation stretching from Boston to D.C. Putting NYC in a declining industrial nation with Detroit as its capital seems puzzling even for 30 years ago...
I think Brooklyn was considered Foundry but Manhattan is its own city-state. Same with DC.
"Mex-America" is a weird one (and why is the capital in the U.S.?) too. If Minnesota and Michigan are different nations, then Mexico (which is much more tribally, ethnically, and socioeconomically heterogeneous) cannot reasonably be cast as one bloc. Oaxaca, Mexico DF, the Yucatan, and Juarez are all very different places (just to get started).
That makes sense then I guess. I initially questioned lumping Newfoundland and Prince Edward Island in with New England, but from what I know of those areas, it's probably not a bad choice -- they fit with southern NE as well as most of Maine does.
And Brooklyn, with all the hipsters and many other people who couldn't afford to live in Manhattan, is also Foundry, same as upper Manhattan? Denver/Boulder and SLC hardly have much in common with the rest of the Empty Quarter either. I have another reply in this thread explaining more about that. And where does Las Vegas fit in? Nevada as a state is very liberal in some ways, much more so than other states in the Empty Quarter.
But MexAmerica was not all of Mexico. In Mexico, it was measured by US influence, just as in the US, it was measured by Mexican influence. (IIRC, one measure he gave for the southern border of MexAmerica was where you stopped being able to receive Spanish-language radio stations that were broadcast from the US.)
