> A missionary may also engage with people with different experiences than their own, but they're only doing so to cement their own world view. When they come across someone they disagree with, they'll just label them as evil without thinking about it.

As a former Mormon missionary, I couldn't disagree more. I didn't meet many people who were interested in the Mormon church, but I didn't consider them evil. If anything, it was my views on my religion and personal spirituality that evolved enormously over the course of the two years, far more than the 19 years previous or the many since. I learned a lot about myself and my worldview. Certainly a lot more than anyone changed their worldview by talking to me.