There are good people everywhere who would refrain from these sorts of threats.
I don't see any reason to suggest that we are
more likely to find such good people among Christians. On the contrary, this sort of talk has been codified as a part of Christian scripture. If we are dealing with a group of people who believe they have been mandated by divine inspiration to behave in this way, we might be justified in hypothesizing that we are actually
more likely to find this sort of activity.
It would be interesting to do a study. Not sure how we would go about it.
So, yes, it is disgraceful to act this way but not
more disgraceful that Christians act this way. That would imply that we have reason to expect better, when we actually have the opposite.
It's been a hard lesson for me to learn. My not learning it has actually, I think, resulted in me being a meaner person due to my being perpetually angry, disappointed and hurt and unwisely using that anger, disappointment and hurt as weapons to try to effect some sort of change. It's been an interesting journey.