That would be heartbreaking! I understand what you meant by not liking the chickens handled roughly. There's just no reason for it. I have a rooster I can't keep, and I'm thinking about just processing him myself, since he will probably end up that way somewhere anyway, and I know he has a good life here. I have a friend who keeps LOTS of chickens, and on one side of her property, she has a coop and run just for the roosters. Many she processes, but the special ones she keeps in their own pen, and just hooks them up with girls in breeding pens a few times a year if she wants to breed them. They seem to get along better together with no hens in sight. Any really aggressive ones go in the freezer. Sad story! Maybe you could try raising the chicks you know are roos in a separate pen and not give them so much attention. Lots of churches would probably know what to do with them to provide them as food for needy families. Culling is hard!
You are a good and compassionate person and your animals are very lucky!
