Not heartless, I care very much for my birds and animals. But what i'm saying is if your rooster's going to be paralyzed for the rest of his life, Unable to move, forage and roost with other chickens, scratch around with like a normal happy chicken would, Then I would just put it out of it's misery. He wont be able to be housed with other chickens, So he'll be depressed and lonely, and unbelievably bored sitting in a plastic tote all day and night.
I understand sometimes people have large flock usually cull for prevention it's maybe cruel even for me too but people who have flock contain 40-50 birds don't take risk