Ok , to respond to your points.
Citing one unnamed book doesn’t overturn the proposition that the overwhelming convention is academic history is not to pass moral judgement on the past - especially by today’s standards. The job of the historian is to explain what happened, how and why.
This concept is driven home from at least A-level onwards, never mind higher education. I can’t really respond regarding your evidence - one book - as you haven’t named it. And, again, an exception doesn’t make a rule.
As American historian Barbara Tuchman once said, “Nothing is more unfair than to judge the men of the past by the ideas of the present”.
Many non-historians however, do fall into this trap. I suspect one thing that annoys people about connections to slavery being pointed out regarding the “great men” associated with NT properties, is that they then decide for themselves he was “bad” by today’s standards and interpret the efforts of people like myself as “vilifying” (term
used upthread) the individual.
Re . “well educated”. No one way to get there: can be self-instructed, higher educated etc. But there has been a great deal of wilful ignorance, false equivalences referred to, logical fallacies and so on on this thread regarding slavery (I’ve highlighted it through two not going to waste my time retyping). Essentially the sort of stuff you get from people poorly educated in history. Or, if I were to be kind, perhaps they are just a bit out of date.