Do you think 50 mini USAs with nukes would be better? Or would there be a couple decades of war until one state more or less took the same place?

I mean right off the bat the old CSA club will get back together. And Imagine the Pacific Northwest and California will work together. No individual state in the Midwest has the economy to stand on its own so they'll probably work together, leaving the remaining states to work together or be conquered.

Plus entities like the CIA and FBI and corporations will still exist and exert their influence.