Yes, I most certainly do call you a bigot. Actually that is a bit mild for what I really think of you.
There is no other possible reason for someone using that phrase. It is totally illogical to use BCE for any other reason other than a jab at Christ.
In other words you don’t know the answer and are afraid to admit to ignorance. Great way to stay stupid!
It’s only done because most people utilize the pagan Gregoian calendar.