The more restrictions you put on yourself the harder it is to solve problems. We all have our own morality and ways we choose to live our lives. Those choices have consequences we have to live with. It sounds like you are willing to live with yours. Sometimes that is not easy.
Donrae summed your options up pretty well but Centrarchid added an interesting twist. If you absolutely have to keep that rooster, treat him like you would a pet poisonous snake or a wild bear or lion. Build him a secure pen but isolate him from the hens. He can be next to the hens but he should not be allowed to get to them. He won’t like it much at first but he will get used to it. The hens may actually miss him at first but they will soon adjust and be much happier. You will be much happier.
It’s possible you have a late maturing cockerel and he will eventually mature enough to act as a true flock master. You might try putting him back with the hens in several months to see if he has changed. It may work but he may (and probably will) need to be isolated for the rest of his life. In no way allow any kids anywhere around that rooster. He will remain a danger for the rest of his life.
Donrae summed your options up pretty well but Centrarchid added an interesting twist. If you absolutely have to keep that rooster, treat him like you would a pet poisonous snake or a wild bear or lion. Build him a secure pen but isolate him from the hens. He can be next to the hens but he should not be allowed to get to them. He won’t like it much at first but he will get used to it. The hens may actually miss him at first but they will soon adjust and be much happier. You will be much happier.
It’s possible you have a late maturing cockerel and he will eventually mature enough to act as a true flock master. You might try putting him back with the hens in several months to see if he has changed. It may work but he may (and probably will) need to be isolated for the rest of his life. In no way allow any kids anywhere around that rooster. He will remain a danger for the rest of his life.