Sometimes they will whine about atheists billboards, like this:
"This is the time of year that the secularists, these atheists, choose to assault our Christianity and our religion," says Jeff Field with the Catholic League. "We decided that we're not going to sit by and let that happen." No turning the other cheek this time.
I don't think anyone believes the myths of Romus and Remulus, or Zeus and Hercules becase, well, those are myths. Yet, many get angry at rational people pointing out that this is also a myth. Just because many people like to believe it's real doesn't change that.
Oh, and atheists have been challenging religious nonsense for years. Where do you think a society that respects human rights comes from?
Some other times, Christians will whine at the secularization of Christmas, represented in "Season's Greetings" instead of "Merry Christmas", or in the driving away of nativity scenes in public places. They would even make a movie about it:
While Al Bundy thrives in a great progressive show, Jefferson Darcy has descended to this low. Sad, so sad
Conservative Christians like to brag an boast about the constitution, but then tend to forget the establishment clause, which declares that the government can't favor one religion over another, or religion over lack of religion and viceversa. In other words, it can't use our money to put up displays about one religion.
Personally, I have no problem with Christmas and wishing someone else a merry one. Even Richard Dawkins hasn't one. But I'll still might say "Happy Holidays" just for the fun of it.
Of course this won't sit well with many of those want just and only their celebration around, which is why they despise the "Happy Holidays" (which includes everything that is celebrated this season) and prefer "Merry Christmas", which is only one of those celebrations.
Finally, if you want a real "War on Christmas" you might prefer atheists to do something like this:
Hindu fundamentalist attacks on India's Christians mount as Christmas approaches
On December 18, Hindu fundamentalists beat two dozen carolers, including young women, and took them to the police station in a Mumbai suburb, charging that by singing Christmas carols they had insulted Hindus.
Two days earlier, Father Thomas Chirattavayalil, who heads a mission parish at a remote village in the central Madhya Pradesh, was attacked at midnight by masked men who left him seriously injured. On December 12, statues of the Virgin Mary, St. John, and St. Mary Magdalene, were found decapitated and disfigured at a church in the Andra Pradesh state.
Well, that's a war con Christmas. The American atheists haven't done anything except exercise their right to free speech and demanded that the constitution be respected in regard of civil liberties. Why? Because that's the logical thing to do if we want a world in which equality is valued.