The main problem I see is that news outlets, people, and link aggregators like Lemmy/Kbin, mainly focus on the negative side instead of the positive said.
For example, focusing on the negative side would be "Climate change is here and we are doomed". Focusing on the positve side would be "These are the things you can do to alleviate climate change". Climate change is the main topic in both information sources, but changing the focus means better discussions, less ragebait and doombait, and a healthier environment for all of us.
Linking to news outlets won't change that, because we all know how they work. But I agree with OP, ragebait doesn't benefit anyone and only harms our mental health.
Unsubscribing or blocking communities/magazines is something that we can do, but that also prevents us to read other kind of news that are posted on those communities/magazines.