By Katie Glaeser, CNN

“Christians don’t deserve a monopoly on holiday cheer," reads a simple yet loaded statement on the American Atheists’ website.

But how could Christians monopolize a holiday that is based on their beliefs?

It turns out that traditions associated with Christmas have morphed into social norms adopted even among nonbelievers.

Everywhere you turn there are decorations, cookies, and music. But for many of the 5% of Americans who say they don’t believe in God, December is not that different from what it’s like for those affiliated with a Christian religion. Those who don’t believe in the reason behind the holiday still celebrate the season’s concentration on values, family, and kindness.

Liz Turcotte from Kentucky grew up Catholic, but her views on religion changed during college. “I feel like a lot of people associate atheism with a lack of tradition and bitterness towards religious holidays when this is far from the truth, at least for me,” she tells CNN in an interview.

Atheism is a very broad term. David Silverman, president of American Atheists, says it can be the lack of belief in God, or never giving much thought to God, and can also include those unwilling to make any sort of decision about what they believe in.

Turcotte says the holiday festivities feel more secular than religious and she’ll be celebrating like many others on Christmas Day.

“We celebrate the end of a long year, whether it was difficult or fruitful, and the start of a new year to come,” Turcotte says. “For me, it is about being appreciative of the people in my life who have helped me through the past year.”

Silverman, with the American Atheists, says many nonbelievers celebrate December milestones like Christmas and the winter solstice.

“Me personally,” Silverman jokes, “I do nothing. I roll in a ball and hide in the corner until it’s over.” But his wife, who is a practicing Jew, puts up a menorah in their house and celebrates Hanukkah with the couple’s daughter.

Silverman says it’s a problem that Christmas is a religious holiday that’s also a U.S. federal holiday. “If you’re going to force Jews, atheists, Hindus to observe Christmas by shutting down the country, what we’re going to observe is the most secular parts of the holiday,” he explains.

Christmas has been a federal holiday since 1870. The explanation offered on the government website America.gov is that the holiday “began to honor universal values such as home, children and family life, and to incorporate secular customs like exchanging gifts and cards, and the decoration of evergreen trees.”

So, Silverman says, “A tree with tinsel and chestnuts roasting on an open fire … it’s perfectly acceptable for an atheist to celebrate these.”

Atlanta resident Adam Olansky says he doesn’t believe in the existence of God, but he and his family still have traditions around the Christmas holiday. They celebrate it by focusing on family and food. The tree was recently trimmed and on December 25 they’ll have brunch and exchange presents.

To Olansky, it’s not the customs that are the problem with Christmas. “I think the most overwhelming part of the holiday season is the way people behave, not the way the stores are dressed up or the music.” He says it comes down to the crazy holiday shoppers - “the person who has allowed a season that’s presumably about peace and joy to drive them off the deep end.”

Silverman says some atheists are upset with Christmas because “Christians do not own the season.” In fact, he accuses Christians of stealing the holiday. “Christianity is one of over a dozen religions that named the winter solstice as their god’s birthday. This is not original,” Silverman says. “It’s not about being out against Christmas, it’s about Christmas being a monopoly.”

Kyev Tatum, pastor of Friendship Rock Baptist Church in Fort Worth, Texas, disputes Silverman’s assertion. “For him to make that kind of claim is just flat out untrue," he says. "It’s Christ-mas.”

“Christ was born during this time. While there is a debate about whether the 25th was the actual date, no one debates it was called Christ-mas to celebrate the birth of our Lord and Savior Jesus Christ of Nazareth,” says Tatum, president of the Fort Worth chapter of the Southern Christian Leadership Conference.

As for atheists celebrating Christmas, Tatum says that’s their right. “We want them to embrace it,” he says. “Christmas is about peace on Earth and goodwill towards men. Whether you believe it or not that’s the reason Jesus came.”

Liz Turcotte will be spreading goodwill this Christmas but says it will be on her own terms, “Exchanging gifts and donating to charity are not religious statements but more of a chance to stop and show people you care.”