Don't waste your breath on these old grumpy fossils calling people snowflakes and defending the hunter. They can't help it, their lives are just miserable
Dogs get out of fenced properties all the time, mistakes happen. A normal good neighbour will call you up or return your dog, not shoot it. If it's an on going problem then things are different and the dog owner is at fault but to shoot the dog the first time it comes on your property is absurd. You can view your own dogs as "just animals" but you don't have the right to view someone else's dog as just an animal because to them and their children it's not. Killing a dog is way more then just killing an animal. You're killing someone's pet, a family member.
If you have no shame or compassion for killing someone's pet then I feel sorry for you. Maybe some counselling will help with your childhood traumatic stress disorder caused by bad parenting.