by Austin Cline at About.com
The single biggest issue for Christian Nationalists may be the use of the generic greeting "Happy Holidays" over the Christmas-specific greeting "Merry Christmas." I don't think that a couple of years ago anyone was saying that it was designed to undermine Christianity or even that it excluded Christmas and Christians. Today, though, people like Lou Dobbs claim that saying Happy Holidays is a deliberate attempt to exclude Christians.
Why has the phrase "Happy Holidays" become popular? Over a period of many years Christmas has become less of a Christian-centric holiday and more of a generic cultural holiday. It is celebrated by many non-Christians in various ways and the religious connotations are lost even on some Christians themselves. Christmas isn't very "Christian" anymore.
More important, however, is the fact that America has become more religiously diverse....
Read the rest of Austin Cline's article Merry Christmas vs. Happy Holidays