Actually the war is not between hate and hate but who gets to keep the bragging right in the end. Of course, Federer fans don't like the fact that Nadal owns their guy and it essentially detrimental to his so called GOAT status; and Nadal fans, while their guy owns the 'GOAT', he hasn't surpassed the Slam count yet to be called the real GOAt. So it's definitely all about that. It's all about who gets to keep the bragging right in the end. I mean look at masterclass' post - he clearly thinks Murray won his two Slams at the expense of Nadal being injured and Federer's decline even when he has no first hand knowledge if that was going to be the case if Nadal was around.
And I remember reading a lot of posts after USO who claimed Murray got to the final and won his first Slam because Berdych did him a favour when he took out Federer in the qtr final. But then we see Murray taking out Federer in the semi-final at AO just a few months after. But then the same bunch contributed that loss to 'Federer declining'. One can never win when one lives in the Fedal era, alas. Ad nauseam stuff.