outhouse
Atheistically
The point is that it is not necessarily referring to Christians and that is a later inference. So people are going around pushing a tampered with translation that translates as "Christians" when that's not what the original said. Actually, we don't know what the original said since we don't have it.
I think there is confusion over when and where the different terms of Christian or christ or christos.
We tend to follow it started out as a negative term that, that later ment something else as mythology grew.
And as this happened it does not mean all people or communities were in sync here. It took hundreds of years to become orthodox