I am happy to allow people's personal beliefs sit quietly by. I saw red, however, when a person with highly individualistic beliefs received a message for all of us - to follow or die. This person took no personal responsibility for the message either, because they were merely the channel.
I've met evangelists in the flesh like this, too. My personhood is insulted if the evangelist's chief concern is the state of my soul...in their minds. They don't care about my hopes, dreams, interests, grandhildren's pictures, or humour.
I shake the sand from my shoes. Pah. Don't need them either.