Merry Christmas! (No X allowed!!!)

This may be a repeat) An honest question. Why is Christmas so offensive that people can't look at the written word, or hear it being spoken? Sales clerks arent allowed to wish you "Merry Christmas" anymore lest they offend you. I understand that some people aren't Christian, that's fine, but what is so offensive that we can't enjoy it? Do they think that by saying Merry Christmas, people are trying to convert them to Christianity? I will say one BIG pet peeve of mine, is the word X-mas. Yeah I know "X" stood for Christ in days long ago, but you never hear that anymore. The word "X-mas" is only used now because people are too lazy to write the other 5, (that's right, 5) letters. They're taking Christ out of Christmas because of laziness. But I digress. Other than the fact that we start decorating at Labor Day, it boggles me that people make such a fuss about saying Merry Christmas. I really think it's tiny, petty people who have nothing better to do with their time than to find offense with everything. Protesters and activists, are harming their credibility, by continuously trying to find something to turn into an injustice. If everything is offensive, what is appealing? If someone wished me "Happy Hanukkah" or "Ramadan", it wouldn't even register. My ears wouldn't bleed. But God forbid the schools even call it "Christmas break" anymore, or "Easter break". These party poopers act like you tried to kill a puppy. They're probably the same people who, on Halloween this year, tried to have an ordinance passed in their town that people could only give out nut free candy. Which means no chocolate. Seriously? A Halloween without chocolate???? That's like taking Christ out of Christmas!