Hermies, while I can identify with what you are saying, I feel that I am a bighearted poultry lover. Here is why I can kill and eat a bird that I have raised:
1) I know it had a good life and was properly cared for. It was never transported elsewhere in cramped conditions, was never handled roughly
2) Since I do care for my birds, I also care about how their life ends. I trust only myself to do the butchering, as I spent time learning how to do it quickly and humanely
3) If I buy birds from a grocery store I know they were mass produced and I feel my birds are raised in far more favorable conditions
4) If I were to bring someone elses birds here for processing, unless quarantine measures are taken for the butchering area, I risk my biosecurity. I also am having to stress the birds by transporting them off-site in order to butcher.
It helped that I did a lot of reading before attempting to butcher and bought a butchering book. My tools are all in order and everything is sharp and ready before I start. I also had someone help me the first time I did it... although that is a story in itself.