Neither. Atheist here, as much of a non-believer as a person can be.
When people tell me merry Christmas or happy holidays I just say the same thing back for the sake of not being a complete piece of shit. But honestly, hearing either is flat out annoying as fuck already.
I know I'm in the minority on that, so I just try to be somewhat agreeable in social situations.
For what it's worth, I do hope everyone is having, has had, or will be having a safe and happy holiday. Whichever one you may celebrate
