Because they usually have a costly habit that needs financing.
These scumbags really don't care of the cost to you not only with the drone itself, but also the repair bill to your car and your loss of time.
Hopefully there's the slim chance you'll get it back through one of the ways mentioned but to be honest, it's probably long gone now.
You or your family weren't hurt here which is the main thing and the drone and window can be replaced.
Chalk it up to one of lives annoyances and just be thankful your life isn't in the same sorry state theirs must be.