Yes, never EVER let the rooster hurt the hens. Unless you want fertile eggs or chicks, don't keep a rooster. They are more work than they are worth. And it is one thing to go after you, but to hurt the hens is just crazy.
I would keep him permanently separate or send him to the stew pot if...
Hello there and welcome to BYC!
Great intro and not long winded at all! :-) Congrats on your new flock. Just be careful with the rooster. Once they start to become aggressive, they can hurt you badly and keep the young kids away from a nasty rooster. They can do big damage to little...