Its the natural order of things.
Local wildlife can be devesating to other local wildlife, can be devestating to the whole ecosystem.
Local wildlife can be devesating to other local wildlife, can be devestating to the whole ecosystem.
A normal predator that devastates the local ecosystem because there are too many will run out of food and then go down in numbers until some sort of equilibrium is restored. Doesn't happen with pets.
I also wonder if you would accept the same argument if the neighbors dog would maul your cat (or even your child)
Some of my neighbours are incensed that coyotes are eating the neighbourhood cats ...
So was The Plague