I agree the Dem ceiling is very high. IMO its going to be "South Maryland" by the 2030's with just a rump rural R base and Dems routinely clearing 60% in presidential elections. The demographic trends are even more of a slam dunk than VA 2008-2020, and the Dem base more committed than the VA Dem base.
If this happens, enough migration etc to cause the state become solid Dem, I believe it'll be the first ever example of a US safe state whose governing party is predominantly composed of black people. This is potentially interesting, as in this scenario, it's possible you'll see self-reinforcing trends. State government passes stuff like policing reform, rural white R voters get increasingly disillusioned and move to other states like Florida, potentially causing Republican support to drop even in rural areas of the state, whilst black people elsewhere (e.g. in Alabama) find Georgia an increasingly favourable place to move to. Which could make such a Dem trend in the state even more pronounced.
There's never really been major amounts of white flight on a state level rather than on a city level before, as far as I know, but in theory there's no reason why it couldn't happen, especially given increasing polarization.
