I mostly read political magazines and blogs. There's a lot of conflict and strife in that arena, yes, but if I eliminate those elements, what's left to read? Greeting cards?
I think if you're currently doing a lot on therapy and healing, then some time away from things that are likely to activate you is a good idea. I don't think that's avoidance, I think it's extra self-care at a time when you need it.
It is restrictive, but then life during trauma work isn't normal life. I could barely wash the dishes or talk to a friend. In my experience, there are going to be a lot of restrictions for a while and that's just the way it is. I certainly couldn't watch TV or films, which I used to do all the time.
It doesn't mean that's forever. I'm able to watch films and read fiction again now, and have just read one that included a trauma scene (justified in the way it was presented and the context of the story). I actually thought how I couldn't have read that a couple of years ago, and I could never have sat through my book group's discussion of it. It's only because I took time away from things I would normally want to do, that I've been able to do enough healing and start living a fuller life again.
Now, what activates me is things that make me feel that even if I'm personally better the world is still a fundamentally bad place and not worth it. While I work on that, I'm still staying away from the news and some other things. I think doing the work is activating enough in itself.
While doing trauma work, I switched something different as far as I could manage it. I think there's plenty other than greetings cards. In my case, I read non-fiction including popular economics and travel books. Things to occupy my brain that didn't ask for imagination and weren't likely to upset me.
I'm not clear if it's conflict/debate in itself that's activating you? From what you say it sounds like upsetting topic matter but please say if I've misunderstood. Others have suggested filtering, and I'm also wondering if you could maintain some of your interest while staying to topics that are safer - is that a possibility? Like, I would read about how supermarkets manipulate us into buying things but I didn't read about the psychology of child abusers.