So we have two groups of people who rarely communicate, have very different backgrounds, think drastically different things, and often spray vitriol at each other when they do talk. Previous studies of Twitter have found similar echo chambers, the Israel-Palestine conflict offering one representative example. It is unclear to what extent Twitter merely reflects social divisions as opposed to causing them; I find it unlikely that Mckesson and the red tweeters would be friends if they met over beers. But even this preliminary analysis does not bode well for the possibility of reconciliation.
To do so will require charismatic leaders dedicated to reconciliation, on both (all?) sides.