You know, I've often felt a person could make a pretty lucrative living just by driving around the country nowadays and doing that very thing...just killing chickens for folks who have never done it or don't want to learn or even helping those who wish to learn.
Lots of people getting into chickens nowadays and they really love the bird and the eggs, but the other part seems to be the sticking point. It's sort of like having a baby...the sex is great, pregnancy is often without too much pain or strife but the delivery is more likely to be a bad experience, but once you do it the first time you realize that it was all worth it to have that little baby. And you can enjoy that little child no matter how horrible the delivery might have been and so you do it again...and then again...and, if you are like my folks, you do it 9 times!
I think, if once you tasted your own chickens, you'd realize they taste just like...chicken. No emotions can really change the taste of the chicken, no more than a hard delivery can steal the joy of a newborn baby, that I have found. No matter how attached I am to a certain bird, they all still taste pretty much like chicken to me.
Sometimes I even imagine the really great birds have a particularly great flavor...but that's all in my imagination. They still just taste like chicken.
We've been able to deter them from the flower beds by laying down deer netting and planting into and through it. They don't like to scratch that stuff, so just anchor it down good and they start to avoid those places. Now we don't have any deer netting down and they leave the flower beds alone. That might be different if we didn't have so much space and other areas for them to forage, so a smaller setup might want to just leave the deer netting in place.