This is not some theoretical, there are lots of existing laws about who is liable for damages caused by livestock.
Some areas are open range. If you don't want cattle on your land its your job to put fences up to keep them out. Other areas are restricted to livestock and it's on the rancher to keep them out of where they shouldn't be.
Some areas are open range. If you don't want cattle on your land its your job to put fences up to keep them out. Other areas are restricted to livestock and it's on the rancher to keep them out of where they shouldn't be.