You raised a very good point that I did not realize until now. In the past 8 years we actually stopped talking about politics to others, because it became so polarizing.
We absolutely need to talk about politics if we want to keep democracy. Hardliners likely won't be converted, but at least, as you said, we should talk to like minded people.
Also, there's indeed no point to worry about things outside of our control, and worry about things we can affect. Threat the things that happen, that we can't control more as an obstacle that we have to deal with. Also support people who might have control and fight (governors, congress people, lawyers, judges, government employees, etc) so they know that aren't doing it for nothing.
They might seem like they work together, but there are different grifters with slightly different goals. Banon wants to bring fascism back.