From PZ Myers:
I’m thinking about all those times I agreed to debates with creationists, and I’d show up at the venue to see church buses lined up outside and a crowd of people clutching Bibles filling the seats. There was no hope that I’d convince them (OK, maybe I deluded myself that I’d win over a few), and really, my role was to play the heel at a fixed match, to draw in the congregation to listen to the face, who got all the adulation. That really got to me at one event, held in a fairly swanky hotel ballroom, where afterwards the preacher who’d brought me in told the audience that my antagonist was staying in a suite there, that they were going to have a dinner with select donors, and that he’d be staying in town to speak at the church the next few days. Then he took me aside, gave me a check for $100, and told me there was a Motel 6 just down the road.
The creationists were smarter than I was. They knew these events weren’t intended to inform or educate; the debate was all about rallying a crowd, drawing in more true believers who wanted to see that university egghead taught a lesson — and it didn’t matter that I wasn’t crushed, because they’d gather together all the conservative Christians and they’d find each other. It’s both sides, too. Debates at atheist events are also a sham, primarily about grooming a particular audience rather than teaching anything new.
Doctorow is focused on politics and the media, but it’s the same old story. The goal isn’t to persuade, it’s to align people with a gang.