Actually I’ve heard it from a number of people. They refused to vote for a Mormon. I guess they think a Muslim is better.
For a number of years, I would go out door-to door evangelizing in our suburban town as part of a team of 2 or 3. The acceptance of that means of evangelism/ inviting newcomers to church declined precipitously between 1975-1985; that probably coincided with greater activity of Jehovah Witness and Mormons coming east, doing the same thing.It became harder and harder to get people to engage on their door step or invite you in. Of course, that was also the era when delivery men (milk, bread, cleaners, etc—even Fuller Brush) disappeared from the street ( fewer June Cleavers at home during the day I guess).