I am not trying to take sides. My opinion is the same for both: "Talk to your neighbors and find a solution that makes everyone happy." I have never had a neighbor dispute that couldn't be solved with kindness.We have two situations going on here.
OP is in an area where it is clear that chickens aren't allowed. But they want chickens so theyre looking for options and support to break the rules because thats what they want.
Situation 2 is about someone that is breaking no rules and dealing with someone that wants things their way even though there are no rules being broken.
Its clear which side I'm on in both situations. Now if you can't agree and you want to back the opposite in both situations thats fine. We all get opinions about right and wrong.