Would you shun (or, online, downvote) someone who chooses to behave in a way that you find abominable? I'm not a Mormon, I don't believe what they believe, but

Would you shun (or, online, downvote) someone who chooses to behave in a way that you find abominable? I'm not a Mormon, I don't believe what they believe, but AFAICT they are — most of the time, and in the modern era — behaving justly & reasonably according to their beliefs.