Yes you can find some pretty bad stories on here about roosters. Some of them are legitimate. There are also a lot of very good stories too but people usually don’t post those. I think the biggest thing that gives a misconception of what it is normally like is that people confuse adolescent cockerels and pullets for adult roosters and hens. Just like you’d expect a difference in a group of 14 year old unsupervised teenaged humans and a group of mature adults that are actually mature, we all know some people never grow up but most do, there is a world of difference in cockerel and pullets versus roosters and hens. Many, probably most, breeders keep one rooster with one or two hens throughout the breeding season with no problems. The secret to their success is that they use mature roosters and hens, not immature cockerels and pullets. I think if you look into the horror stories on here it is almost always cockerels and pullets. You have a cockerel.
Another big factor is people’s expectations. Some people see what many of us know to be normal chicken behaviors as brutality. I agree with immature cockerels and pullets it can get brutal, but most of the time with adult roosters and hens it is not. The rooster will always be the dominant one, he will always be on top. The hens may not always squat when he dances, some chasing may be involved, but that is normal flock behavior and interaction.
It’s possible your cockerel will be really rough on them. It’s possible the older hens will beat the snot out of that cockerel until he matures. If you can get by that phase they should eventually settle down into a nice flock. This is usually harder on the people watching than it is on the chickens themselves, but they are living animals. They don’t come with guarantees. Sometimes it really is brutal.
My suggestion is to try it. See how it goes.
