I do not understand the mathematics behind the dilemma. I’m assuming only the firts chicks cost money, because down the line they will breed.
But feeding them, housing them - vitamins and doctoring costs a lot of money.
So anyone with couple or more chickens - how much does it cost to have them on the table? And realistically how many eggs do you get?
If your animal is on other people’s property murdering other animals and causing property damage you shouldn’t be allowed to keep that animal. Especially if there are kids in the neighborhood.