Agreed, that’s why you trap them.
I lived next door to an old lady who had 30 something feral cats and the population was growing. I had to do something since my yard was being turned into one big litter-box. But I did it quietly and humanely.
As a teenager we lived in a suburb. Next door a guy had the most beautiful .22 rifle with at least a 7” silencer on it. At a hundred feet you heard nothing.