If your best bet isto hide from the world and never voice your opinion then you assuredly lose.
I cant see it.
What kind of wood is it?
Find the same kind of wood, mill it down into shavings and sawdust.
Carefully spread the wood enough to begin to press and fill the void with the sawdust mixed with wood glue.
Build it up past the surface of the stock wood.
release the pressure and then use heavily padded clamps or other means of pressure to hold it together until it cures.
Sand down the excess wood fill carefully, and then reapply a finish to it.
You should be asking this in a wood working forum instead on how to save a cracked piece of antique furniture. It doesn't even look that bad.
If you do the process appropriately, it'll be just as strong as the original, uncracked wood. Sometimes its stronger at that spot compared to everywhere else.
You maybe need to very carefully use a needle file to get at the crack area while its going up through the stock. This process helps create a round edge in the wood that prevents splitting. Once you've got that round edge, having it filled with sawdust+wood glue will make it basically like new.
Instead of looking like this >--- It needs to look like this ===). so any excess crack down the length is taken out and then a round hump is placed in it, which should naturally occur if you're using a filing method.
Go ahead and buy a replacemet if you want to use the gun while you're fixing the original.
https://www.youtube.com/watch?v=SpJ9ZSzjccE
https://www.youtube.com/watch?v=msLVRr3XXbw
https://www.youtube.com/watch?v=tE7fSLvOq4Q
I offer these videos to say that there ARE restorative solutions.
There should be some way to make them pay for property destruction of things that dont belong to them.