Like you, I was initially very unhappy to have a cockerel. As he matured, that changed, and as I learned more about how to handle a rooster, that helped too.
Let me count the ways I like having a rooster:
1. Although he initially seemed to assault the pullets, he outgrew that over time. The initial rush of adolescent hormones can be ugly, and the pullets are clueless. Eventually, they figure it out.
2. The hens seem to like him. They compete to roost next to him. They wait for him to check out the run for safety in the morning, and to inspect a new nest box.
3. He's really big and beautiful.
4. Neighbors and I enjoy the crowing. There is something really enjoyable and satisfying about hearing a rooster in the mornings. He does not crow excessively, and crows less as he has aged.
5. He stays on alert and defends the flock. He took on a black snake.
6. He does those charming rooster things you read about: calling hens over for treats, doing his little courtship dance, breaking up squabbles between the girls.
7. He has been more trainable than I expected. For example, he learned to self load into a dog carrier when I was transporting the flock between a run area and the coop.
8. If you like animals, observing animal behavior, and are a student of animal psychology, learning to work with and handle a rooster is an interesting experience.
If you are motivated, you might want to do some research and give your little roo a chance to mature. If not, good luck rehoming or whatever you choose to do. Having a rooster is not for everybody, for sure.