Oh, yes. We usually put luminarias out for a few days before Christmas - not the electrical ones; the old-fashioned ones with a candle in a lunch bag with sand (or kitty litter) in the base. They were nothing from which anyone could make a profit by taking them away.
Once in a while, I'll find a smooshed one in the morning - which usually means that a kid was riding a bicycle and veered off the sidewalk. It happens.
But one year, somebody took all of them.
Why? It wasn't sensible. It certainly wasn't neighborly. But most people do non-sense-ical things at one time or another. It falls in the category of toilet-papering a yard or spray-painting a wall. You just have to file such things away under the category of Stoopid. And, although you don't want to call the police, if you see a police car in your neighborhood, you might just want to mention this. There may be other acts of vandalism going on.
I hope it won't spoil your Christmas. Maybe you can make up for it by putting some battery-operated candles in your windows - the INSIDE of your windows.