It's almost the start of the holliday season which means...

Damon Vix didn't have to go to court to push Christmas out of the city of Santa Monica. He just joined the festivities.

Santa Monica officials snuffed the city's holiday tradition this year rather than referee the religious rumble, prompting churches that have set up a 14-scene Christian diorama for decades to sue over freedom of speech violations. Their attorney will ask a federal judge Monday to resurrect the depiction of Jesus' birth, while the city aims to eject the case.

"It's a sad, sad commentary on the attitudes of the day that a nearly 60-year-old Christmas tradition is now having to hunt for a home (I guess Santa Monica churches don't have front yards?), something like our savior had to hunt for a place to be born because the world was not interested," said Hunter Jameson, head of the nonprofit Santa Monica Nativity Scene Committee that is suing.

Missing from the courtroom drama will be Vix and his fellow atheists, who are not parties to the case. Their role outside court highlights a tactical shift as atheists evolve into a vocal minority eager to get their non-beliefs into the public square as never before.

National atheist groups earlier this year took out full-page newspaper ads and hundreds of TV spots in response to the Catholic bishops' activism around women's health care issues and are gearing up to battle for their own space alongside public Christmas displays in small towns across America this season.

"In recent years, the tactic of many in the atheist community has been, if you can't beat them, join them," said Charles Haynes, a senior scholar at the First Amendment Center and director of the Newseum's Religious Freedom Education Project in Washington. "If these church groups insist that these public spaces are going to be dominated by a Christian message, we'll just get in the game — and that changes everything."

In the past, atheists primarily fought to uphold the separation of church and state through the courts. The change underscores the conviction held by many nonbelievers that their views are gaining a foothold, especially among young adults.

The Pew Forum on Religion & Public Life released a study last month that found 20 percent of Americans say they have no religious affiliation, an increase from 15 percent in the last five years. Atheists took heart from the report, although Pew researchers stressed that the category also encompassed majorities of people who said they believed in God but had no ties with organized religion and people who consider themselves "spiritual" but not "religious."

"We're at the bottom of the totem pole socially, but we have muscle and we're flexing it," said Annie Laurie Gaylor, co-president of the Wisconsin-based Freedom from Religion Foundation. "Ignore our numbers at your peril."