He’s fallen out with one player Digne. Any other player who has spoken to the media has come out in praise of him so far: Gray, Townsend, Gordon, Branthwaite, DCL, Doucoure, even Richarlison up to this point.
These players are an absolute shambles so if they had all fallen out with Benitez I doubt we would see the type of display we saw against Arsenal.
If more evidence comes to light then great, I’ll change view, but at the moment all we have is Digne sidelined and a kopite writing about how all the players hate him despite most coming out in support for him so far. We also have a sulking Richarlison going off even though he was injured.