I hear ya. I have almost completely stopped talking politics with people IRL, especially strangers, and even with my family. There's one guy I talk with where it comes up and we're of the same mind, but I get weary even then of my own doom-spiraling, and I usually end up telling him, OK, that's enough of that. Probably because he's still pretending things are completely normal and the mid-terms will offer Trump a rebuke in a free and fair election. We'll see, but if it doesn't, I don't think it will because the voters will gladly put them right back in, let's put it that way.
This area is basically my only outlet, because I get to articulate my thoughts far more precisely than I can otherwise.