I have had chickens for the last six years, but I only kept a rooster once. I thought the rooster would be good for protecting the hens and maybe giving me new baby hen chicks. Instead that rooster attacked me repeatedly and when he tried attacking my little daughter, he met his end. Needless animal cruelty is wrong, but all a rooster wants to do is murder anything it can. A friend wrote this story about a redneck southern tradition, pretty interesting:
https://www.agweb.com/news/business/southern-fried-cockfighting-dynasty-crashes-alabama-family-farm-toppled-usda-sting