One thing worth noticing is that we have lots of his (and his wife’s) videos and he is always so sincere, and passionate in selling what ever point of view that he wants to hold at that moment, for that audience, with moving personal stories and pauses etc.
It becomes dizzying to see the same man taking opposite positions in different tapes and always bring his same oily sincerity to the presentation, it is that persona that causes the revulsion that so many people feel for him.
I noticed that with the creepy abortion story that he told in the debate video you posted. It feels so contrived and fake.