I'll go first [CW racism]
"Did you know they just passed a law in Afghanistan that women aren't even talk to each other anymore?" - My Zionist cousin at Xmas dinner.
The rest of the family proceeded to spend half an hour ranting about how terrible Arabs are.
..so, how's your holiday been? 
I don't see my family often, not that I've had issues with them, but we just don't contact ourselves much? But we're happy to see each others.
But I worry for one of my older brother, he was prompt to bursts of "opposition/anger" in the past, but yesterday he was kinda unhinged. He's a sort of a doomer with some notion of class struggle, but where everyone else is stupid and doesn't see the big picture. Every interactions we had in the group, he had to interject and give input of some kind where everything is bad and stupid and everything. He doesn't seem to enjoy himself at all, just some kind of mad.
He lives with my younger brother and his long lasting SO, but it feels like he's more and more disconnected.
We don't do emotional stuff really good in the family, but I feel like I have to step up and say I'm worried about his current state of things. I've always been seen as the one who can reach out to him and somewhat reason with him. But I must admit that I didn't do to well too with expressing emotional stuff. I've been struggling with mental health a lot in the past and tried to seek help quite a few times (it is now being managed pretty well). I feel like it would help him too, somewhat to help him manage his what I feel perpetual anger, but I doubt that he would take others perception well to start such a trip.
Anyway, I restarted playing online games with him, I'll try to get a moment to really to him about my worries.
Even though all of that, I had a good time, I wish you all the same!