No, they dont because not all are christians so no!
Many people celebrate Kwanzaa as a cultural holiday believing that it's a non-religious celebration. The creator of Kwanzaa intended to create this as a new religion, but the interest of most people seemed to be more cultural than spiritual. So quite simply it does not belong to any religion.
Some of them celebrate, but some of them don't.
new years eve
hmong people
We celebrate Easter, Christmas, New Years Eve, New Years Day, Bonfire Night and Halloween, some people also celebrate Lent and Thanksgiving but not that many.
Same as us
Russians open their gifts on new years day, Santa Claus comes after new years eve. They don't celebrate Christmas, they celebrate new year.
New years Eve
Christmas, New Years Eve, Hanukkah and Kwanzaa.
America is a very diverse country and we have many different types of people, so we do celebrate all that apply to us. New Years, Presidents day, Valentines day St. Patric's day, Groundhog day, the 4th of July, Labor day, Veterans day, Hanukkah, Christmas, Kwanzaa and many more...
they celebrate it like Americans people do
secular and religious holidays Christmas and new years