Per Facebook's terms and conditions:: "However, graphic images shared for sadistic effect or to celebrate or glorify violence have no place on our site."
We need to be the voice for the dogs that aren't able to have one. There are many things on Facebook that get removed for the smallest reasons, but when protested to remove dog fighting, Facebook doesn't agree that it is violent. There are full fledged videos of humans fighting each other that are constantly allowed, but the difference is that those people CHOOSE to partake in those fights. Dogs have no choice--we need to be their voices.