Trump didn't create the circumstances on his own. He stepped into the race, asserted certain proposition, and is reacting to events and criticisms.
His media prominence includes some people who view him as a train wreck, and others view him as a leader who puts American interests first. Both groups have big numbers.
Politically, he is a pariah. See 22 leaders of NR, Levin is openly disdainful, Limbaugh is more clever. Only the "extreme" politicians such as Sessions and Palin support Trump - the others see him as a lesser of two evils, but still evil.
At any rate, the battleground was established the moment Trump entered the race. But the "screw Fox News" move is reactionary on his part. He's chosen an unconventional path. People will analyze that in light of their own bias.
Did you read Adam’s article?
Are you or anyone here watching Fox News, MOre, less or the same? With me it is most definitely LESS MUCH less.
My TV was turned on to Fox News all my waking hours. It never left that channel unless I was watching a movie.