Well Liberals are not replacing themselves so if they move to places like NC and Texas, they are unlikely to outnumber Conservatives who tend to have 2-4 children in the future.
You may be right,but locally on Long Island I have seen Republicans replaced by Dems moving out from NYC to the point where Nassau County now has a majority of Dems to Reps. It may not happen in SC, La Ala or Miss but I’d not be surprised to see NC and Ga do deep purple in five years.