Comment by cle
Some of the best convos I've had are with ideologues, it just requires authentic empathy and effort, which means letting go of moral presuppositions and being willing to really listen to them without injecting your own judgments & opinions. If people subconsciously think you're trying to do that, it'll trigger their defense mechanisms and the convo will instantly shut down (or devolve into chaos).
People love to talk about what they think is important, but NOT when they think they're being setup or playing into someone else's hand.