Totally agree.
This risks getting pretty far afield, but I’m hoping we’re in-bounds:
There’s a strong element of Microbe vs. Terrain at work here, and I think we’re explaining the terrain.
I like Al Franken’s quote:
“We love America just as much as they do. But in a different way. You see, they love America like a 4-year-old loves his mommy. Liberals love America like grown-ups. To a 4-year-old, everything Mommy does is wonderful and anyone who criticizes Mommy is bad. Grown-up love means actually understanding what you love, taking the good with the bad and helping your loved one grow.”
Tribalism. The right is generally far more tribal than the left. The right has a mortal lock on “very religious” people and “strongly nationalistic” people. Those are NOT people given to question the dogma of their tribes. Not by a long shot.
So, in terms of the news, if it comports with their beliefs, it’s true. If it does NOT comport with their beliefs, it’s false. That’s pretty much it. That’s their research. That’s their analysis.
I think the demagoguery comes in on the supply, or microbe, side where the politicians endlessly and cynically manipulate their flock (ie, gulling the rubes).
Whether or not one reasonably thinks that Joe Biden may have been involved in improprieties involving his son’s business, there simply Is No Inculpatory Evidence, at this point, to support that belief.
For now, it’s surmise, conjecture, hypothesis. A gut feeling. Nothing more.
And I firmly believe that everybody involved in the manufacture and distribution of this narrative is acutely aware of that fact – no compelling evidence of a Joe Biden crime.
They’re just selling it to an extremely credulous bunch that is profoundly inclined to believe what they’re being told and can’t be arsed to fact-check any of it.
Couple that with what I said above about the specialized technical nature of many of these issues, and … it’s taking candy from a baby.
So they’re lazy, too. I won’t argue against that 
Seriously, I think that’s part and parcel of what I describe above. It’s not worth any really tribal person’s time and effort to critically examine their tribe. Wash. Rinse. Repeat.