Christmas is billed as a family occasion and a huge amount of advertising money is spent convincing people that they need to have big expensive family events. This is good for the advertisers but not good for people who have no family to meet up with (orphans, people who live in different countries to their families, and people who don’t get along with their relatives).
If any of your friends don’t have an event planned for Christmas day then it’s a good idea to invite them to your family party if possible. When I was younger there were two occasions when friends who didn’t have a possibility of attending a party with their own family attended a Christmas party with my family. Unfortunately I’m not in a position to make such an offer this year, but I encourage everyone who knows of someone with no plans to consider the possibility of inviting them to a party.
Another possibility is that Linux people who have no option of a family party could arrange a Linux community Christmas party.