I would get rid of your older rooster before your young ones pick up on his behavior towards people. I spend time looking at my young birds, talking to them, and picking them up to move them. All run from me but not far, and come towards me when I'm bringing treats.
They should all move out of you way when you walk. I'm not mean to my young roosters and I'm not afraid of them. As they reach sexual maturity and start making my pullets scream they may be chased off as I defend the pullet or they may get a plastic can tossed in their direction, otherwise I don't interfere too much. They grow up knowing I'm dominant but not necessarily a part of the flock. I have only had one aggressive rooster and he was handled and petted.
Hopefully your boys grow up respectful. You will need to not be afraid. I would actually get angry and chase down any rooster foolish enough to try an attack, but haven't had any since I stopped petting them.
I have a nice fishing net that I use to catch chickens, they all know it and fear it even if I never caught them. I find it can work well to correct young roosters to chase corner and net them temporarily, it's similar to what a dominant rooster will do to young ones. I certainly don't do it often and not for every rooster. It is a good way to mentally dominate without hurting them.
My older roosters come greet me in the morning to see if I have treats and will often follow me around while I do the feeding, but they will move out of the way if I walk in their direction. It can be quite easy to raise a respectful rooster but the keeper has to be confident and unafraid. I'm really rooting for you to get yourself a nice rooster or two. I have 3 large breed adults and about 7 young ones, as well as 11 adult bantam roosters and 3 young ones. All are nice boys.
Just wanted to let you know that we did dispatch the rooster in question last night. I was worried about the possible effects on the hens. This morning the whole farm feels calm and peaceful. I was able to go outside and sit on the grass in the shade and the 8-week-olds came and sat on my lap (formerly I would be scared the whole time the rooster would attack me). The older hens are laying around relaxing in places they never relax in, just snuggled down relaxed. The rooster used to run them around all day. My two pet potbelly pigs, whom the rooster had been attacking, approve of the change as evidenced by happy relaxed vocalizations.
So now the young cockerels will grow up and make some kind of peace among themselves and we'll be in a new phase here.
Thank you for the support. It was emotionally hard but emotionally rewarding that we did do it.