Any restaurants in NOLA open around Christmas?

Yes. They just moved a few blocks down the road/up the street. As far as who was eating there...tourists. But since tourism still (used to) contributes to the local economy and to the service industry workers, I won't belittle anyone too much.

https://www.nola.com/entertainment_life/eat-drink/article_b3cd3e18-aa96-11ea-a328-f3509af0c731.html