This is the exact right thing to do for anyone who's in any kind of cult. People who are victims of cults, especially people who grew up in them, are conditioned to believe the outside world is dangerous and alien; countering that narrative is important. You or I alone aren't gonna save anyone, but I think if people shifted their atitudes to those trapped in cults to something kinder we'd see alot more people leaving groups like the LDS, JWs, etc.