The only real switch lately is their move away from hard news following the leftist channels down that goofball world of celebrity. Their morning show is the worst, with cooking, kardashians, and other self-important non-entities.
The non-discerning types let all that slide, but suddenly got their dander up because FoxNews is not participating in the bizarre hero worship of this particular populist packaged celebutard reality television character by people who used to stand together for conservative causes. They are now smitten by hype and appear as gullible and non-curious as the most fawning Obamabots.
FoxNews generally just barely sucks less than MSNBC, CNN and the broadcast networks. Nothing's changed in that regard.
Or it could be a combination of feeling a bit betrayed by FOX's apparent false right wing slant, and anger that FOX would so shamelessly spin news and poll results because they do not like the current leader. Surely no one believes this behavior is reserved for Trump exclusively .
I will buy your societal tonic.