... Aftercall the injuries they get is not so severe because its coming from their fellow specie.
Did you not see blades up their legs?
It is funny when we see people justify the cruelty to animals by integrating the idea of hypocrisy about eating meat. As we see, there are lots of differences between harming animals by means of entertainment and butchering them for survival. Anyone can push the idea of farming animals for food, and raising them for a death match entertainment is the same thing but they are not. One is to sustain nutrients needed by people, while the other is to sustain the excitement felt from seeing two animals fight to the death. There is a huge difference between needs and distorted desire.
Meat is not a need, you deffo don't need it for survival; vegetarian communities exist and they live fine (I was going to mention veganism too, but not completely sure of this diet yet).