I think that there are a lot of people on the fence, that probably would vote Democrat again, if they weren't being told how stupid and evil they are all of the time. As soon as someone says anything that isn't 100% acceptable to the leftist intelligentsia, they are immediately branded an "alt-right extremist". It's like trying to talk politics with my indoctrinated 16 year old niece. Everything is so black and white, and that's a sure way to polarize. Try watching the movie "Lincoln" sometime. Especially the scene where he is trying to talk moderation to Tommy Lee Jones, who just wants to burn down the South and punish everyone, especially the Democrats, who were pro-slavery at the time (imagine a time when the Republicans were the good guys - weird eh??). Lincoln explains that a compass may point true north, but if you just rely on your compass, you'll end up in a swamp. There are ways to get things done, just like there are ways to bring people together. And that means getting over the anger, and finding ways to work together again.