I put "War" in quotes because it is purely imaginary. This is one of those Right Wing Myths that is used to keep the under 80 IQ trailer park set in constant state of consternation and contributing money, which they really can't afford to part with, to Right Wing organizations.
I agree that if you go back to the early sixties or 1950s, any holiday greeting other than Merry Christmas would have sounded strange. "Happy Holidays" or "Seasons Greetings" were few and far between.
But as time moved on, the country became more mixed and the minority non-Christian groups became more of an economic force, the switch to the neutral terms of expression became more prevalent.
Personally, I don't really care what you say but there are some who might.
As I've said before, this is NOT the Holiday Season. It's the Christmas Season. Christmas is the big Kahuna. If you want to piggyback some other celebration onto the Christmas coattails, that's up to you.
Hanukkah occurred this year sometime around Thanksgiving. Besides, it's a very minor Jewish holiday and, if the truth must be told, a terrible thing to celebrate. It essentially commemorates the success of reactionary forces stifling the growth of culture, knowledge and democracy.
As for Kwanzaa, I still don't really know what the hell it is.
The Christmas Story is certainly a myth but that's no reason not to enjoy the story anyway.