What are your goals for that cockerel? Why do you want a rooster? The only reason you need a rooster is if you want fertile eggs. Everything else is personal choice. Personal choice can be a strong drive, but that is a choice, not a need.
I don't know how much of this is an age thing. I had a 5-month-old cockerel that peacefully took over a flock with mature hens and pullets his age. No issues whatsoever but at that age that's rare. I've had several do that at seven months. I once had one that could not until he was 11 months and that involved a really rough two days between him and the dominant hen. I do think that the personality of the hens plays a part. It is not always just the male.
Some hens will squat for practically anything in spurs, even if they are tiny nubs. But many hens, especially mature ones, expect the male to behave like a good father to their potential children. An immature cockerel is often not able to act like that so they don't cooperate. Some mature hens my beat the crap out of a snotty brat when he bothers them or another hen, but generally mine run away. I have had some, generally pullets, stay in the coop and even on the roosts to stay away from an amorous cockerel.
It's possible that cockerel will mature into a decent rooster. But I'm not impressed with one at 8 months that needs to be that physical, especially when he grew up with the flock. With your move coming up I'd get rid of him and start over if you feel you really want a rooster. You can get different opinions on whether it is best to raise a rooster with the flock from a chick or bringing in a mature adult. Either one can work but try to avoid bringing in an adolescent cockerel.
From what I've seen breed doesn't have that much to do with a rooster's behaviors. You can see posts on here where Silkies, RIR's, Favorelles, Brahmas, Barred Rock, or any other breed of rooster has been a brute with his girls and/or human aggressive while other posts have them as great. My suggestion is to decide what physical traits you want in a rooster and go with that. To a certain extent their behavior is a matter of luck. The good thing is that most do work out.