This story might interest you and lend some support to the post I made about how race replaced focus on the elite. It is applicable to events in the US wrt the Trump situation. Some food for thought regarding engaging with Trumps base.
Some years ago , I was a member of a different forum and at the time there was a surge in xenophobia in the country( the UK ) due to a rise in immigration from eastern Europe. A political party called the British National Party ( BNP ) started to both stoke the fires and seek the support from doing so with groing numbers of new members. The lefties on that forum used to hate me engaging in debates with BNP members and thought a no platform/no engagement policy was they way to deal with them. I disagreed and thought the strategy was sure to backfire so I ignored the moans and constant PMs for me to desist.
My argument was that because I lived in an area, predominantly white working class, I actually understood that some of the grievances BNP members expressed were valid, even if they had been duped into blaming it on the wrong people, the immigrant community. The danger in not acknowledging this and dismissing everything as being borne of racism is a mistake imo and a mistake that leads to further extremism that then becomes entrenched. This explains the situation with the Trump base imho. and that's why it is crucial to maintain the dialogue even in the most difficult of circumstances. The horse may have already bolted on both sides of the Atlantic with the embracing of Trump and the insanity of Brexit but we can only keep trying to halt the ugly lurch towards racist/fascist type movements as they appear in a hope to undermine them.
I used to tell the BNP members that their political party was, in fact ,an illegal outfit, which it was. They replied that if this was the case, instead of the media often condemning them the state would just enforce a closing down operation to put an end to them. I told them that this will happen only when they have enough numbers to actually effect the general elections but for the time being they are serving as a useful vent for the effects of immigration. Some years later they gained significant support in the elections and the government moved to close them down and that was that.
The noral of the story to me is that it is better to engage with those whose views you dislike, or may even hate, in order to ward off a worse situation further down the road. We got Brexit, you got Trump., let's hope it doesn't get any worse before it gets better and dialogue is the only way forward imho