Yes. I think effective discussion involves leaving space for people to arrive at conclusions themselves and work through their thoughts.
Best done by asking a few key questions, avoiding getting into a tit-for-tat, keeping the temperature calm and staying with evidence and logic. I would say.
Before we even get to the golden bridge stage, we've got to make a space where people can get perspective and get past various thought terminating cliches.
The very first one is 'no debate'. We are still just at the beginning of getting past that, really.
I think there are layers to this issue. People didn't accept it all wholesale, it's been a gradual process of learning what they are not allowed to say, think, or believe, and there are layers of catechism and faith articles that probably have to be looked at patiently, one by one.