As I have posted before, I have “issues” with Mormons (primarily men) with being “Do as I say, not as I do” types. Contrary to popular belief, there are MANY Mormon men who are VERY married with (several) children and who are pretending in public and in their workplaces to be “single.”
Also, I don’t like the way the Mormon kids (teenagers) “gang up” on a classmate they are trying to “convert” and congregate in front of their “potential convert’s” home, waiting for them to come outside. To my mind, this is stalking.
As far as being “exclusionary,” I don’t see that they are (but may have been in the past).
However, I don’t want to offend any Mormons here. The above describes my experiences only.