It was a very long discussion and short hand was required.
I always acknowledged that the historian and Tory grandee Niall Ferguson believed Britain should have stayed out of the war.
It hardly needs saying that most historians have written nothing about that period at all, so are not included in the statement, "all historians."
I also made clear that I only included professional historians whose work could be found in libraries and bookshops, and was recognised by other historians.
I did say "all historians" but it was always clear what I meant by that.
It was not necessary to spell it out every time, every day for over a year.

I also requested at least 2 or three times a week for a year and a half that someone find such a historian with differing views.
Still none.