OK Christians, the rest of us seldom complain about the special treatment you get in this county. (The continued existence of the FLDS as an example) My statement is both as a non-Christian, and as a lover of words. When I write "Xmas" it is an abbreviation, not an attack as part of a "War On Christmas"
Anyway "X" as an abbreviation for "Christ" is much older than secularism. "X", or the Greek letter "Chi" was and is a symbol for Christ. In the 19Th and early 20Th centuries illiterate immigrants to America signed their names with an "X" to signify that they were Christians.
So get over it. I abbreviate for speed, and because I enjoy the throwback to an ancient language that is actually very significant to the event. If you want to fight a war, boycott Hallmark, Walmart, and the rest of the consumerstopo, and give to charity for Xmas. It's what Jesus would do, even if he were not the son of god.