Every public debate I have ever seen Dershowitz engage in (maybe 6 or 7 over the years) was profoundly disingenuous. Some of it I would characterize as blatant lying. Above and beyond that, he is consistently extremely rude to his interlocutors.
The man pretends to be an intellectual, but makes a mockery of it. It’s really a shame that Harvard continues to lend him its institutional credibility, and that other respected institutions invite him to comment about anything ever.
(I have no insight about the Epstein stuff; I’m just talking about his past public debates about a variety of legal and political topics.)