For my part, in an effort to try to understand where the deterioration was coming from, I tried to trace the lineage of the different seemingly pre-packaged outrage nuggets. Trying to see if I could make sense out of the respective roles that things like 8Chan, weird PACs and foundations, Facebook, Twitter, email chains, online news, and television news were playing in ultimately crafting the "junkie" that used to be a person I could talk to about rafting, or skiing, or cars, or whatever. Where every possible topic of conversation would inevitably devolve into looking for any opportunity to inject some sound bite or meme. Anecdotally what I found was that the television media part of it was never the progenitor, it was always the legitimizer. A narrative was always seeded first through other preliminary means (e.g. Facebook or astroturfed email chain), and then eventually that narrative would be confirmed through some corner of television media, and then this acts as a legitimizing function seemingly due to the role that broadcast media used to play in their lives historically.
Eventually I gave up on trying to unpack it any further because it was clear I had no means to do much about it regardless of what I could unearth and understand about how it was happening or if I could get ahead of the curve on some facets of it by avoiding topics that could even incidentally be connected to upcoming "hot buttons".