Well not exactly. Christmas is a holiday...not really a charity party...people just tend to be more charitable because it is a holiday that commemorates the birth of Jesus, who was allegedly selfless. So it's a religious holiday and people celebrate it in different ways. It's not really a race thing either...depending on how you define race. The people that generally celebrate Christmas are the ones who recognize the holiday, you don't have to be religious to celebrate it...but like...if your religious faith is Judaism you'd probably celebrate Hanukkah or if you're Muslim you'd celebrate Ashura around this time of year. The meaning of the holiday has changed over the years too.

But different cultures can exist in one place and still work together pretty well. Not always...in some places it's a little harder, but in a lot of places it's possible.