I was reading the question How do I help my 3 year old daughter who is terrified of what I believe is a ghost? just now, and I noticed that one of the answers consists mostly of a promotion of Christianity. The answer is essentially saying, "Pray to the Lord, and He will help you with your problem."
I suppose that technically, it's a completely valid answer. Perhaps praying to the Lord really is the best solution to the problem. I don't think it is, but it's not like I have any proof that I'm right and the answer is wrong.
But nevertheless, I feel like the answer is not appropriate. After all, what if someone responded to the question How do I undo the most recent local commits in Git? by saying, "Pray to the Lord, and He will reveal to you a method for undoing the most recent commits"? I don't have any proof that that is wrong, and yet I feel confident in saying that we would not accept such an answer.
Should answers like this simply be downvoted? I know that answers that are not useful should be downvoted, and in my opinion, this answer is not useful because the religious beliefs that it is based on are not true. But I also think it seems utterly inappropriate to downvote an answer because I disagree with the author's religion.
Should the answer be flagged for deletion? Does it even violate any rules?