"Many of the birds were maimed and barely breathing"
I am not sure what kind of person, persons, group, or American subculture would willingly gather in gross, disgusting basements and gamble upon the fates of roosters that have razors tied and/or taped to their legs for the purpose of being placed in a combat ring so that they can main and kill each other.
This story in the news here in ABQ, New Mexico, is of a gross, disgusting man named Diego Martin Elias, someone who had a whole "cockfighting" ring set up on his property where other complete grossbags could go and watch the spectacle, and the story is also of the man who supplied him with roosters for torture, Ivan Peregrino. The story is also here.
As I say, I'm not sure exactly what you would call such a subculture.
But I'll go right ahead and call it an inferior one.
And as for you, Wilford Brimley? You can suck my dick.