Imagine walking into a huge library. Every book has descriptions of complex problems. Some books have solutions. Some books don't. But you can only read one book at a time. In that library you can focus on the book that matches your needs and skills. And the world doesn't seem too crazy.
Now imagine the same library, but with a thousand different people shouting at you to come look at the problem in some book they picked just up. What kind of reality are you going to experience in that library?
But using curation by someone else in an attempt to solve the problem of overwhelming malaise in one's news feed just won't "scale" (sorry for using that valley buzzword). How much can any entity curate on a day-to-day basis? How does one decide what's actually worthy? Didn't we see this before in the early web when Yahoo thought it could categorize everything? Can we trust _anybody_ (other than ourselves) to white-list what we see?
As a twitter user, I've found using the "muted words" feature to be somewhat helpful, my list is _very_ long and includes not only the people and issues I despise (president cheeto-satan, etc), but also their opposition which I generally agree with. Yeah, it's "leaky", every once in a while I get mug shot of somebody I'd rather not see, but it does mitigate the never ending stream of despair.
In general, I think individuals would do better to limit their news feeds by themselves, either through the discipline of sticking to trusted sources, or by more draconian measures of filters. Cable news, of course, is a no-go dumpster-fire.
I'm not sure that particular genie is going back in the bottle, though.
There are entire countries in the middle east that have been destroyed with millions dead, millions of refugees, families and infrastructure destroyed and set back a hundred years without consequences. And more are threatened as we embrace this new 'violence free' world.
On one side there are sweeping claims without evidence of the world getting 'better'. These kind of wide assertions would need a lot more data points and discussion by historians, economists and sociologists to get to some kind of 'truth' that is not propaganda.
Fortunately there are detailed works by academics like Piketty, Stiglitz and others with real data on stagnant wages and inequality over 40 years, on how gains are going to a small minority worldwide for those who are interested. Some may want to feel better because the current system favours them and that's perfectly valid. But sweeping claims about improvements sound as credible as the trillion dollar sv elite wanting to solve the worlds problems while failing to address the homelessness in their backyard.