While this is has been thrashed around before, it is worth mentioning again that it isn't fair to compare state teams from states with such population differences. NC and GA both have populations more than twice that of SC. Pool size is hugely important. I happen to think that the fact that we are competitive with their state teams speaks very well of SC soccer.
Why not look at the fact that we consistently do better than LA, AL, TN, etc., states of similar size?