That term comes up this time of year. I used to think it was nonsense. Now I see there is some truth in it. And if you understand the agenda behind the political-correctness movement, you'll come to agree with me. (And for the record, I celebrate Christmas, but not as a Christian.)
In this era of "political-correctness", we have seen a growing extremism take place where freedom's are being squashed. Can't say this, can't say that. Certain words and phrases are now labeled "hate speech".
As I often say: Freedom of speech does not mean freedom from being offended.
What we see happening with Christmas is quite similar. Those who celebrate the religious aspect of it sometimes find themselves fearful to acknowledge this, fearful due to the "we must say Happy Holidays" politically correct crowd. Fearful due to the societal brainwashing that says we have to keep certain things to ourselves lest we MAY offend another.
Not everyone celebrates Thanksgiving, Halloween, Easter, Summer and Winter Solstice, 4th of July, etc. However, I think the choice to wish another "Happy___ Day" should NEVER be imposed upon. Let us take the wish as it is--a wish. We all make assumptions about one another, therefore we will all assume, at one point or another, that those around us are celebrating the same recognized holiday as we are. It isn't a crime to do so. The crime only comes in when the greeting triggers an emotional response and a verbal argument ensues, which then leads to threats, physical attack and/or other imposition's of one's will.
And doesn't that sort of defeat the purpose of the celebration?