Both CNN and Fox are accessible through Cable and through streaming services. Just as recording artists transitioned from vinyl to CD to other media - "Cable" news networks are being accessed outside of cable.
Are the majority of Americans ditching legacy news networks? I don't know. What's true is that there are many, many more news outlets today compared to the 60s, 70s, 80s and there are also more vehicles (TV, Smartphone, PCs ...) for receiving news than any time in history.
Bottom line: We have more choices today for the type(s) of news we receive and how we receive that news.
My comment was that "Cable TV" as we know it is GOING AWAY. Your responses seems to AGREE with my POV. In simple terms people will NO LONGER sit in front of their TV at a SPECIFIC time to receive the news report.
The Cable to your home and the cable Box it is connected to are "GOING AWAY."
Comcast for example is reported to be losing 350 to 400-thousand households per QUARTER of their CABLE TV subscribers.
My point: It's "GOING AWAY."
Your point seems to be there are many NEW STREAMING sources. Doesn't that mean CABLE is being replaced?
Vinyl records went away but MUSIC didn't. It was transformed over time from the vinyl format to file downloads. Even CD sales have shrunk considerably compared to the past.
The only thing that is PERMANENT is CHANGE!