

I wouldn’t.
I’d approach it from a personal level, as in, “you’re disgusting for doing this, you’re disgusting for pretending any of this bullshit is defensible. This is beyond the pale. I’ll talk to you again if you stop it with the crap, not before. I’m ashamed to come from people who would do this.”
I don’t know if it’s a good idea to try and talk actual policy points with them. You think they reasoned their way there? This isn’t politics, it’s assholish indecency. Treat it like the thing it is.
Debating people who’s entire thing is “don’t be serious but make the others be” is dumb. Clown on em, tell them you can visit when they stop being transparently awful. Make it their job to patch things up, and don’t use kid gloves. Don’t allow the idea that they have a point into the conversation. That only applies to people who have points. Nazi shit gets you put in time out instead.
Don’t take up the mantle of always having to put out the fire they keep lighting in the bridge between you. They’ll burn it down and try to blame you for it, mark my words.
…so, never put things in the terminal?