It's funny how Christians are the ONLY group I EVER hear about getting a "bad name" as a group from any behaviors seen as "bad"--and it comes up virtually EVERY time any Christian is being chastised for anything the one offering the criticism doesn't like.
This widely practiced exception to the Bigotry Rule is just one of the many proofs that Christians are held to a different standard than anyone else--which itself bears testimony to the spiritual warfare described in the Bible.
I don't agree that Christians are the ONLY group. But if you're going to hold yourself up as a standard of moral authority then you had better live it word and deed. A different (higher) standard is exactly right.