I say Merry Christmas to everyone. It is not my responsibility to take their temperature and manage their emotional content.
People with class will say thank you, or Merry Christmas back.
I also say thank you when confronted with Happy Solstice, Happy Hanukah, and May Day greetings.
I say Happy Independence day on the Fourth of July
I say Happy Columbus Day in October.
I say Happy Valentines Day in February
I say Happy Washington’s Birthday
I say Happy Lincolns Birthday
I ignore presidents day.
I honestly don’t care how they are received. They are my greetings.
I really don’t think much about it, it’s more of an automatic response on my part, which works for me, since I don’t need anyone’s “temper” interrupting my work because they have an ax to grind and want me to feel the edge of it.
Merry Christmas to you and other holiday or holy-day you may celebrate.