If you were to write a film one year ago based on the current events in the US, I don't think people would accept the premise either. I feel I was pretty pessimistic compared to most and I have been shocked at how quickly things have changed.
Simpsons did it (at least the Trump as president part). Like a lot of great humor, it had that biting edge because it was seemingly implausible with just enough of a hint of plausibility. That couldn't really happen, or could it? Oh %$#%.
Overton window meets verisimilitude and the increase of credulity with decreases in education and critical thinking skills in the face of massive new media assaults facilitating information overload and reduced costs of manufacturing of consent.
