I say ‘Merry Christmas!’ but I admit I feel guiltridden about it

Today on Morning Edition, I heard Cokie Roberts, who has a binational state in her own household (she and her Jewish husband celebrate both religious traditions and do not practice ethnic cleansing)
say "Merry Christmas!" Claiming it boldly. Jeffrey Goldberg had a funny bit about loving Christmas here, but it was a little vague on the issue, does he say "Merry Christmas" to others. Seems that he says it when someone says it to him. I grew up in a family that practiced ethnic cleansing. Somewhat xenophobic and superior, we were. And aesthetically worried about Christmas, that its shameless commercialism and tacky displays, as we saw them, would affect us. My mother had the egg libel. It was the belief that when Christians blow an egg, they then use the egg in food, mixed with all that gentile saliva. It's hard to chow down with Christians once you know that. Merry Christmas!!!!