I heard something on a radio show during Covid on how to talk to people who have “gone down the rabbit hole”. It was discussing MAGA as a cult. The guest on the show was a woman who was raised in a cult in the 70’s and she “got out” and spent her time talking with others in the cult to help them to break free. I can’t find a reference to the show, but I think it was Carrie Miller hosting.
My takeaway was that you can’t come at people and tell them that everything they know is wrong and you will show them the way. They’ll fight you. You need to deprogram them similarly to how they were programmed into the cult. Small bits, here and there to slowly guide them to questioning their beliefs. Once that happens, show them how to research and seek out information and let them know that they will be safe.
If someone found a link to the podcast/radio show, I’d be super happy.
Perhaps you can find inspiration from Daryl Davis, who convinced 200 Klansmen to give up their robes.
https://www.npr.org/2017/08/20/544861933/how-one-man-convinced-200-ku-klux-klan-members-to-give-up-their-robes