My DD and I have a joint poultry project. DD feels like you do about the cockerels, and I’m a vegetarian! Nonetheless, we both love hatching eggs and chicks.... We were giving away cockerels to local free rangers who maintain a lot of Roos for protection/ hawk bait. However, now we have Marek’s disease so we no longer rehome. Last year’s Christmas present to DD was a rooster bachelor pad, coop and run, which she and I made. That’s worked out well for last years cockerels that DD fell in love with. However, we’ve bred more chickens this year, and again have excess cockerels. The already occupied bachelor pad was expensive to build and time consuming, and we can’t rehome, so that left few options beyond humane butchering, though this decision was indeed hard on DD. If you are dead set on keeping all of your cockerels, then it sounds like you need a new bachelor pad of sufficient room to house them all. Depending on your weather, it doesn’t need to be very fancy. After all of the effort that I put into our bachelor coop, the boys prefer the run, and even roost there. I’ve thrown a tarp over them and they are comfortable. You could quickly and fairly inexpensively throw a run together for your boys, so your hens don’t have to live in constant fear.