[chs68]

"I don't know why anyone would feel moved to wish a non Christian a merry Christmas. How about, "have an nice day"."

You have a point, I suppose.

I could say, "Have a Nice Day on December 25."

But it is much shorter just to say, "Merry Christmas."

Why would a non-Christian want to take offense at a simple wish from one person to another for merriment on a particular day?

[Protagoras]

I could say, "Have a Nice Day on December 25."

That would make no sense unless you were trying to make some point. Kinda like saying "have a nice day on April 22nd". No need to differentiate.

But it is much shorter just to say, "Merry Christmas."

"Have a nice Day" is only 12 letters, the other is 14.

If you were a Jew, why would I wish you a happy Ramadan?

Why would a non-Christian want to take offense at a simple wish from one person to another for merriment on a particular day?

I never claimed they would, but I'm sure some do. My point had nothing to do with the person hearing the greeting, only the one offering it.