Christmas as a secular holiday

Throughout the 20th century, the United States experienced what became known as the Christmas controversies over the nature of the day, and its dual status as a religious feast day and a secular holiday of the same name. The importance of the economic impact of the secular Christmas holiday was reinforced in the 1930s when President Franklin D. Roosevelt proposed moving the Thanksgiving holiday date to extend the Christmas shopping season and boost the economy during the Great Depression. Religious leaders protested this move, with a New York Times roundup of Christmas sermons showing the most common theme as the dangers of an increasingly commercial Christmas.

"Now it is Christmas again" (1907) by Carl Larsson.
Some considered the U.S. government's recognition of Christmas as a federal holiday to be a violation of the separation of church and state. This was brought to trial several times, recently including in Lynch v. Donnelly (1984) and Ganulin v. United States (1999).
On December 6, 1999, the verdict for Ganulin v. United States (1999) declared that "the establishment of Christmas Day as a legal public holiday does not violate the Establishment Clause because it has a valid secular purpose." This decision was upheld by the U.S. Supreme Court on December 19, 2000. At the same time, many devout Christians objected to what they saw as the vulgarization and cooption of one of their sacred observances by secular commercial society and calls to return to "the true meaning of Christmas" are common.
Debates about Christmas in America continued into the 21st century. In 2005, some Christians, along with American political commentators such as Bill O'Reilly, protested what they perceived to be the secularization of Christmas. They felt that the holiday was threatened by a general secular trend, or by persons and organizations with an anti-Christian agenda. The perceived trend was also blamed on political correctness.