Because they have convinced themselves that anyone that is not literally sucking drumpf’s balls is a liberal plant deeply involved in the deep state conspiracy to steal the election.
Some of them believe Fox News was bought by liberals and can’t be trusted now. Others, only want to hear a repeat of what their extremist talk radio and social media is feeding them.
Can’t have anything that might create cognitive dissonance; too hard to handle.
As others have said, they’ve turned against Fox News because they recognized Biden’s win. It’s the same reason they’ve turned against the SCOTUS. Any institution that does not support the “stop the steal” narrative has been corrupted by the “radical left”. I’ve heard many Trump supporters recently express anger that the SCOTUS didn’t “defend the president” by overturning the election results. They really don’t seem to understand how this country works.
45 has labeled Fox as part of the “fake news media” who are out to get him. His die hards believe everything he says, so they are off to next available news that does support him NO matter how honest or dishonest they are!!!