Mostly today, people don’t say Merry Christmas, they say Happy Holiday’s because it’s more politically correct.  As a Christian, not saying Merry Christmas goes against what the true meaning really is.

So what does the word Christmas actually mean?  Christ is the Greek translation of the Hebrew word Messiah, which means “the Anointed One.”  The word mas means “celebration.”  So Christmas is the celebration of the One anointed with the burden-removing, yoke-destroying power of THE ALMIGHTY GOD!
Ref: KCM

So this Christmas season, take a stand when someone says, Happy Holiday’s, you reply, MERRY CHRISTMAS!  People’s faces do light up with your response.  If they debate with you, now you have the true meaning to share.