Ferguson does not endorse Jim's view that people did not really support the war, or that the army was badly led.
He does believe that Britain's imperial legacy might have been preserved if we had not made a stand agaisnt German aggression, assuming that a Germany controlling the whole of Europe would have allowed us to do that.
He is on his own with his far right views of Empire, and I doubt Jim would align himself there. Do you Jim?
If so you can count one historian who supports one of Jim's views.
Otherwise there is a consensus against.
(Klopp and Shankley are not WW1 historians and included for comic affect.)