Usually refering to works of fiction, movies, TV etc.
But I think it’s a much larger phenomenon. It has esaped fiction, entered real life and politics. It drives a lot of people these days to stick with bad narratives instead of facts and, yes, truth.
Meaning: they’re willing to swallow tons of contradictions, plot holes etc. because they want to be convinced by what they’re seeing or being told. That enables certain public people to tell them very flimsy stories.
This is not purely about people choosing bad input because it suits them. It’s not only about being lied to and believing those lies. It’s about being lied to badly and still not letting go of the narrative. Wanting to take it for real so badly.
edit: I’m beginning to realize that people who don’t know or haven’t known suspension of disbelief will try to explain it with something similar that they’re more familiar with.
And it is very similar to things we see happening in so-called political discourse these days, esp. in the USA.
But many have known this since before Trump1.0, see e.g. TVTropes and Wikipedia.


Is the word you are looking for “confirmation bias”?
Confirmation bias is about people choosing information that suits their world view. That’s not what I mean. I expanded my OP to hopefully make it clearer.
I mean, the Trump admin lying to us is one thing, but they’re doing it so, so badly and yet people can’t let go of it.
I guess confirmation bias could be a reason why they are driven to such extreme suspension of disbelief.