You ever see them eating in the wild?
If you let you cat outside, especially around "Holiday season" there are at far, far, far greater risk of someone leaving out roast chicken or turkey.
Cats will simple eat the smaller bones. They will pass through. However, roasted meat bones are brittle and fracture creating incredibly sharp spikes and edges which, leads to some serious difficulties. Angel fell foul of this and was in a right state for a few days, but she was fine. Black "occult blood" in her waste which she had little control over, vomitting which included said turkey bones.
NEVER feed a cat cooked bones.