Oh B, I totally get this so hard.
What I've had to do is to consciously limit my consumption of current news, and this includes limiting my social media consumption. I also increased activities that keep me grounded, especially those that have nothing to do with a screen--drawing, painting, knitting. I also try to get in at least one yoga class a week--2 if I'm really cool.
As for people on your feed or in comments, what I have to realize is that everyone is dealing with an unprecedented situation. There's no blue print on how to act, and maybe we need to show some compassion to our fellow humans. I have to realize that a lot of people are dealing with their own personal crises right now. Their reactions say a lot more about how they are handling things than what they actually think about something. I see so much anger and I find that it's largely fueled by insecurity, fear, and sadness. And for this reason, I have stayed away from the comments. The problem is that social media is so immediate, so they can instantly react, and often do, before they actually explore why they are feeling this way. Most of these comments are really a catharsis for the poster, and says very little about any other content. Realize that people are hurting, across the board and they are lashing out, but I view this as I would a toddler having a temper tantrum. Tantrums only happen when someone is overwhelmed and unable to properly put words to their frustration.
I find that positive change only occurs with intent. I have had to intentionally limit my time reading news, my time on social media, and my time looking at screens in general. I've stopped with FB because I really don't want to know what my aunt thinks of Qanon. I've focused my time and attention towards my art. I do yoga and remember buddhist principles about the transient nature of all things. I also try to remember compassion, even towards people that are the most cantankerous.