IMO it depends on where you are and what happens. Pretty much anywhere on the eastern half of the US has more people then the land can support. Anywhere with a population of gimmees (regardless of race) is in trouble. The one positive is those people will probably sit on their butts waiting for the govt to save them until its too late.
The catch is the first week will be dangerous unless you’re in an area where the feral ones get organized under something like Islam. Here in Florida the thieves are out before the wind dies down.
I think that east of the Mississippi, there will be a major population adjustment in the big cities. There is still an abundance of fertile productive land across the rural South. And there won’t be nearly as many mouths to feed, after the city fires have burned down. And the cities will burn down.