I don't understand this fetishism with centrism and all opinions being treated equally, and that having made up your mind on an issue is necessarily wrong.
When it comes to an issue like, say, climate change, I spent years reading the blogosphere, reading blogs like WUWT and whatever Judith Curry would come up with, and then the rebuttals, sometimes waiting years for the science to come out.
For any issue around climate science, there's probably a web page on it at skeptical sicence. I've probably skimmed at least half the papers on that webpage. After many years of that (I'm a veteran of the mid-2000s global "pause" debate) I've made up my mind.
The idea that having made my mind is a horrible thing, is just a tactic to try to creates wedges of doubt to try to keep a zombie political idea going. One side is getting very desperate because of how incredibly wrong they've consistently been.
And implicitly I bet it isn't Fox News viewers that you see starting to listen to NPR (although I'm certainly they'll pick out some individuals that do) it is predominantly working to get the open-minded-liberal crowd and Joe Rogan viewers to spend some time letting Fox News pour information into their head in the name of being better informed about both sides.
Some news really is equivalent to trans fats and highly refined sugars for the brain. Trying to achieve "balance" there isn't actually healthy. Some of it is just bad. And the two outcomes are either that you're going to get sucked in (and not even realize it) or that you're just going to get angry at it.