Urge Facebook to prohibit promotion of animal cruelty

I refuse to have violence as a daily ingredient. I believe that when we are exposed to such content, what at first is gruesome with time it becomes normal, we can get used to violence, as humans we cannot remain sensitive to what today looks outrageous because we need to adapt. Whenever I have reported violent content pages to Facebook they claim they don't see violence in an image such as the ones displayed by "Peleas de perros" (a Facebook community whose name translates as Dog fights) for instance. This is the reason why I started this petition.