As always Cat - you have crystalized it! This thread is not...and at least originally was not...about wishing someone a good day or chatting up the clerk at the checkout.
The question was - how to deal with holiday greetings for holidays with which you are not familiar. I said, and still say - I would rather give an innocuous "my thoughts will be with you" that to offend. If some people think that trying not to offend is "PC" -- so be it.
As I recall there is an expression...."the road to hell is paved with good intentions."
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