I remember reading back in the day of the telegraph.The more one watches the news media, the more effectively they can control the viewers and shape their thoughts, opinions, and worldviews to the point where the viewers no longer remember what they used to think and believe. The media has become much worse now than it was under Nazi and communist propagandists. Half a century ago no one would have believed that American news outlets would outdo Joseph Goebbels and Joseph Stalin in the art of lying and perverting information.
They would embellish and create false stories, as most towns were hundreds of miles or way more from the source of the story.
So they back then could effect election, and events from thousands of miles away.
The Nazis perfected the manipulation of people on a vast scale. I find it troubling. Not even 100 years later and we are walking right smack into the same. But as you put it, the scale is unimaginable. I just remember as a kid the Dr. telling you smoking was good. And then the Tobacco companies knew it was bad. Yet.... Living this long the stuff I have seen take place I could right a book.
I prefer to not watch the news. Just avoid it,