You're just fishing for a nice and spicy example. Here is a bland one. I have a big cup of coffee on my desk right now. There are very nice people right here in the USA, some of whom have been my neighbors and about whom I will say nothing derogatory, who think I am endangering my immortal soul by drinking from it. Some might consider taking one or the other stance extreme. I think weighing in publicly on whether such behavior is "redeemable" as if it is for you to decide is wholly inappropriate.
You're looking for some pure, objective reality that will never exist. You have to take a stand at some point; you cannot sit and say "who am I to say?"
"Who am I to say if it's wrong to believe people should be killed and enslaved for their skin color? Next thing you know, someone may think I'm extreme for what coffee I drink!"