You could grab his orange head and shove it straight into that video and he'd just double-down on his insistence that he did nothing wrong, the trial was all politically motivated and therefore invalid, and that the conviction is fake.
It's like trying to argue with a Flat Earther or Moon Landing Denier, or religious nutjobs, real truth and real facts are meaningless.
FFS drop Trump in an oubliette and be done with it.