Jewish-American patronage of Chinese restaurants
The American Jewish habit of eating at Chinese restaurants on Christmas is a common stereotype portrayed in film and television, but has a factual basis as the tradition may have arisen from the lack of other open restaurants on Christmas Day.
Historical background
The relationship Jewish people have with Chinese restaurants during Christmas is well documented. The definitive scholarly and popular treatment of this subject appears in the book A Kosher Christmas: 'Tis the Season to Be Jewish by Rabbi Joshua Eli Plaut, Ph.D. in the third chapter entitled "We Eat Chinese Food on Christmas."
The origin of Jews eating Chinese food dates to the end of the 19th century on the Lower East Side, Manhattan, because Jews and the Chinese lived close together.
There were nearly a million Eastern European Jews living in New York in 1910 and Jews constituted over "one quarter of the city’s population." The majority of the Chinese immigrated to the Lower East Side from California after the 1880s and many of them went into the restaurant business.
The first mention of the Jewish population eating Chinese food was in 1899 in The American Hebrew journal. They criticized Jews for eating at non-kosher restaurants, particularly singling out Chinese food. Jews continued to eat at these establishments.
In 1936, it was reported that there were 18 Chinese restaurants open in heavily populated Jewish areas in the Lower East Side. Jews felt more comfortable at these restaurants than they did at the Italian or German eateries that were prevalent during this time period.
Joshua Plaut wrote of the origin of Jews eating Chinese food on Christmas: "It dates at least as early as 1935 when The New York Times reported a certain restaurant owner named Eng Shee Chuck who brought chow mein on Christmas Day to the Jewish Children’s Home in Newark.
"Over the years, Jewish families and friends gather on Christmas Eve and Christmas Day at Chinese restaurants across the United States to socialize and to banter, to reinforce social and familiar bonds, and to engage in a favorite activity for Jews during the Christmas holiday. The Chinese restaurant has become a place where Jewish identity is made, remade and announced."
There's a pretty neat short doco about the role that Chinese Americans have played in the US South and I seem to recall them talking about Christmas in there somewhere:
https://youtu.be/2NMrqGHr5zE
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: