i actually think that democrats need to stop pretending that it's important to win primaries in deep red states like south carolina.
bernie shouldn't completely abandon the state - he should make a nominal effort to show up and compete. but, his strategy should be to get out of the way and let the other candidates split the vote.
the reality is that losing south carolina, as he no doubt will, will not matter a whole lot, in the end. what matters is making sure that no other candidate runs up the score, there.
https://www.vanityfair.com/news/2019/02/bernie-sanders-already-repeating-some-crucial-2016-mistakes