Yea, but NC has since been invaded by yankees from the north and Mexicans from the south. Both groups fleeing from the consequences of their own bad voting habits, only to start the destruction all over again.
In the long run, the DINK (double income, no kids) Yankee philosophy will keep their numbers down. To be sure, this isn't real helpful in the next few elections, but I have a feeling that that the future demographic effect will be muted.