Sometimes, our love for our animals means we need to do what hurts us in order to do what's best for them.
By hanging onto your multiple cockerels, you are depriving them from the opportunity for flocks of their own. You are inviting conflict that may not only tear up your hens, but may result in terrible injuries to the cockerels as they battle one another for opportunities to mate the hens.
When I found I had two extra cockerels out of a batch of chicks last summer, I put an ad on the local radio station. I gave them away free to good homes. Each three-month old cockerel went to a flock that had no rooster, so each boy ended up with a flock of their very own. One went to a farm with nineteen hens, and the other to a backyard flock with six hens.
Try to see that your cockerels will be much happier with flocks of their own.