I love having a roo but I hate having one that is mean to my girls and i know wont grow out of it.
That is the key question isn't it. He is already 6 months old. Will he mature enough that the older hens will respect him and allow him to mate. The pullets also when they start to lay eggs. Laying eggs gets them over a hump where they act more mature.
Mature hens expect a rooster to act like a good father to their potential children. He should have the self-confidence and magnificence to wow them with his personality. He should take care of his flock, finding them food, breaking up fights, and watching for predators. Most adolescent boys have trouble meeting that standard. Some hens will mate with practically any male but many want something better. From what I'm reading it sounds like none of your hens are close to accepting him and squatting for him.
My situation is different from yours. I typically raise several cockerels with the flock every year. With my goals (playing with genetics) I typically keep a new flock master every year. So I eat the cockerels that don't meet my standards and select one out of many every year. My standards include behaviors. Even with 10 to 20 cockerels to choose between every year I still occasionally get one that is a disappointment. It's hard to evaluate how they will behave as adults before they are fully grown. With you only having one boy you are at the luck of the draw as to how he will behave when mature.
The personalities of the girls have a lot to say about how peaceful your flock will be too. Some hens can be very aggressive about wanting to be flock master themselves. For me the worst combination is a strong dominant hen and a boy with a fairly weak personality. You often read on here where it is best to raise a young cockerel with a flock of older hens so they can beat him into submission and teach him manners. From what I've seen and stories like yours I don't believe in that but many people I respect on here do.
I've had a cockerel 5 months old take over as flock master with a flock with mature hens (those hens were not that aggressive). Most of my cockerels do that at 7 months. I had one (a poor choice on my part) that could not do that until 11 months and then he and the dominant hen had a violent two days before he took over.
So where do you go from here? To me, six months is an in-between age. He may need more time to mature enough to win respect from the hens. So isolating him from the flock for a while might give him that time. How long? I don't know. I would not expect a week to be enough. A month might or might not be. He may never grow up.
I agree this is a good time to evaluate how strongly you want a rooster. To me the only reason you need a rooster is if you want to hatch chicks. But it is a personal choice. Many people, including people that free range their flock, are very happy without a rooster. Others, even if the flock stays confined, would not have a flock without a rooster even if they don't hatch.
If you decide you do want a rooster you can try keeping that one and see if he works out. Or you can try bringing in one next spring that is about a year old. He should be mature enough to win over the girls based on personality. You don't get guarantees with any of them but a year old one gives you a pretty good chance.
Good luck. This is not always an easy choice.
