The only reason anyone goes on Oprah is to get kudos from low-information-people. In a year or two, he'll come out for fighting against global warming, or fighting for women's rights, or one of any leftist cause and all will be forgiven by the media and the low-info-population at large.
Science is not consensus. Science is not up for a vote. It's not a political contest to win. But that's what it's become.